2024

Skorodumina, I. A. et al. (2024) Double-pion electroproduction off protons in deuterium: quasifree cross sections and final-state interactions. Physical Review C, 109(6), 065205. (doi: 10.1103/PhysRevC.109.065205)

Mornacchi, E. et al. (2024) Evaluation of the E2/M1 ratio in the N→Δ(1232) transition from transition from the γ⃗p → pπ0 reaction. Physical Review C, 109(5), 0055201. (doi: 10.1103/PhysRevC.109.055201)

Afzal, F. et al. (2024) First measurement using elliptically polarized photons of the double-polarization observable E for γp→pπ0 and γp→nπ+. Physical Review Letters, 132(12), 121902. (doi: 10.1103/PhysRevLett.132.121902) (PMID:38579200)

Dalal, R. and MacGregor, I. J. D. (2024) Nucleon-nucleon correlations inside atomic nuclei: synergies, observations and theoretical models. Reports on Progress in Physics, 87(3), 034301. (doi: 10.1088/1361-6633/ad27dd)

Kim, A. et al. (2024) Beam spin asymmetry measurements of deeply virtual π0 production with CLAS12. Physics Letters B, 849, 138459. (doi: 10.1016/j.physletb.2024.138459)

2023

Bashkanov, M. et al. (2023) Neutron polarisation transfer, Cx′, in π+ photoproduction off the proton, d(γ⊙,n→π+)nspec. Physics Letters B, 847, 138283. (doi: 10.1016/j.physletb.2023.138283)

Ghosal, D. et al. (2023) Helicity dependent cross sections for the photoproduction of π0π± pairs from quasi-free nucleons. Physics Letters B, 847, 138273. (doi: 10.1016/j.physletb.2023.138273)

Kim, C. W. et al. (2023) Measurement of the helicity asymmetry E for the γ p → pπ0 reaction in the resonance region. European Physical Journal A, 59(9), 217. (doi: 10.1140/epja/s10050-023-01123-3)

Bashkanov, M. et al. (2023) First measurement of polarisation transfer Cx′n in deuteron photodisintegration. Physics Letters B, 844, 138080. (doi: 10.1016/j.physletb.2023.138080)

Diehl, S. et al. (2023) First measurement of hard exclusive π−Δ++ electroproduction beam-spin asymmetries off the proton. Physical Review Letters, 131(2), 021901. (doi: 10.1103/PhysRevLett.131.021901) (PMID:37505937)

Korover, I. et al. (2023) Observation of large missing-momentum (e,e′p) cross-section scaling and the onset of correlated-pair dominance in nuclei. Physical Review C, 107(6), L061301. (doi: 10.1103/PhysRevC.107.L061301)

Christiaens, G. et al. (2023) First CLAS12 measurement of deeply virtual Compton scattering beam-spin asymmetries in the extended valence region. Physical Review Letters, 130(21), 211902. (doi: 10.1103/PhysRevLett.130.211902)

Diehl, S. et al. (2023) A multidimensional study of the structure function ratio σLT′/σ0 from hard exclusive π+ electro-production off protons in the GPD regime. Physics Letters B, 839, 137761. (doi: 10.1016/j.physletb.2023.137761)

Chetry, T. et al. (2023) First measurement of Λ electroproduction off nuclei in the current and target fragmentation regions. Physical Review Letters, 130(14), 142301. (doi: 10.1103/PhysRevLett.130.142301)

Paul, S.J. et al. (2023) Alignment of the CLAS12 central hybrid tracker with a Kalman Filter. Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 1049, 168032. (doi: 10.1016/j.nima.2023.168032)

Avakian, H. et al. (2023) Observation of correlations between spin and transverse momenta in back-to-back dihadron production at CLAS12. Physical Review Letters, 130(2), 022501. (doi: 10.1103/PhysRevLett.130.022501)

Tian, Y. et al. (2023) Exclusive π− electroproduction off the neutron in deuterium in the resonance region. Physical Review C, 107(1), 015201. (doi: 10.1103/PhysRevC.107.015201)

2022

Paul, S. J. et al. (2022) Observation of azimuth-dependent suppression of hadron pairs in electron scattering off nuclei. Physical Review Letters, 129(18), 182501. (doi: 10.1103/PhysRevLett.129.182501)

Carman, D. S. et al. (2022) Beam-recoil transferred polarization in K+Y electroproduction in the nucleon resonance region with CLAS12. Physical Review C, 105(6), 065201. (doi: 10.1103/PhysRevC.105.065201)

Cividini, F. et al. (2022) Measurement of the helicity dependence for single π0 photoproduction from the deuteron. European Physical Journal A, 58(6), 113. (doi: 10.1140/epja/s10050-022-00760-4)

Zachariou, N. et al. (2022) Beam-spin asymmetry Σ for Σ− hyperon photoproduction off the neutron. Physics Letters B, 827, 136985. (doi: 10.1016/j.physletb.2022.136985)

Mornacchi, E. et al. (2022) Measurement of Compton scattering at MAMI for the extraction of the electric and magnetic polarizabilities of the proton. Physical Review Letters, 128(13), 132503. (doi: 10.1103/PhysRevLett.128.132503)

Isupov, E. L. et al. (2022) Polarized structure function σLT′ from π0p electroproduction data in the resonance region at 0.4GeV2<Q2<1.0GeV2. Physical Review C, 105(2), L022201. (doi: 10.1103/PhysRevC.105.L022201)

Diehl, S. et al. (2022) Multidimensional, high precision measurements of beam single spin asymmetries in semi-inclusive π+ electroproduction off protons in the valence region. Physical Review Letters, 128(6), 062005. (doi: 10.1103/PhysRevLett.128.062005)

Morán, S. et al. (2022) Measurement of charged-pion production in deep-inelastic scattering off nuclei with the CLAS detector. Physical Review C, 105(1), 015201. (doi: 10.1103/PhysRevC.105.015201)

2021

Rowley, J. et al. (2021) Improved Λp elastic scattering cross sections between 0.9 and 2.0 GeV/c as a main ingredient of the neutron star equation of state. Physical Review Letters, 127(27), 272303. (doi: 10.1103/PhysRevLett.127.272303)

Chatagnon, P. et al. (2021) First measurement of timelike Compton scattering. Physical Review Letters, 127(26), 262501. (doi: 10.1103/PhysRevLett.127.262501)

Khachatryan, M. et al. (2021) Electron-beam energy reconstruction for neutrino oscillation measurements. Nature, 599(7886), pp. 565-570. (doi: 10.1038/s41586-021-04046-5) (PMID:34819691)

Korover, I. et al. (2021) 12C(e,e'pN) measurements of short range correlations in the tensor-to-scalar interaction transition region. Physics Letters B, 820, 136523. (doi: 10.1016/j.physletb.2021.136523)

Dupré, R. et al. (2021) Measurement of deeply virtual Compton scattering off He4 with the CEBAF Large Acceptance Spectrometer at Jefferson Lab. Physical Review C, 104(2), 025203. (doi: 10.1103/PhysRevC.104.025203)

Zachariou, N. et al. (2021) Double polarisation observable G for single pion photoproduction from the proton. Physics Letters B, 817, 136304. (doi: 10.1016/j.physletb.2021.136304)

Mullen, C. et al. (2021) Single π0 production off neutrons bound in deuteron with linearly polarized photons. European Physical Journal A, 57(6), 205. (doi: 10.1140/epja/s10050-021-00521-9)

Hayward, T. B. et al. (2021) Observation of beam spin asymmetries in the process ep→e^{'}π^{+}π^{-}X with CLAS12. Physical Review Letters, 126(15), 152501. (doi: 10.1103/PhysRevLett.126.152501)

Zheng, X. et al. (2021) Measurement of the proton spin structure at long distances. Nature Physics, 17(6), pp. 736-741. (doi: 10.1038/s41567-021-01198-z)

Carver, M. et al. (2021) Photoproduction of the f_{2}(1270) meson using the CLAS detector. Physical Review Letters, 126(8), 082002. (doi: 10.1103/PhysRevLett.126.082002)

Shrestha, U. et al. (2021) Differential cross sections for Λ(1520) using photoproduction at CLAS. Physical Review C, 103(2), 025206. (doi: 10.1103/PhysRevC.103.025206)

Mirazita, M. et al. (2021) Beam spin asymmetry in semi-inclusive electroproduction of hadron pairs. Physical Review Letters, 126(6), 062002. (doi: 10.1103/PhysRevLett.126.062002)

2020

Hu, T. et al. (2020) Photoproduction of η mesons off the proton for 1.2<Eγ<4.7GeV using CLAS at Jefferson Laboratory. Physical Review C, 102(6), 065203. (doi: 10.1103/PhysRevC.102.065203)

Diehl, S. et al. (2020) Extraction of beam-spin asymmetries from the hard exclusive π+ channel off protons in a wide range of kinematics. Physical Review Letters, 125(18), 182001. (doi: 10.1103/PhysRevLett.125.182001)

Paudyal, D. et al. (2020) Extracting the spin polarizabilities of the proton by measurement of Compton double-polarization observables. Physical Review C, 102(3), 035205. (doi: 10.1103/PhysRevC.102.035205)

Zachariou, N. et al. (2020) Beam–target helicity asymmetry E in K+Σ− photoproduction on the neutron. Physics Letters B, 808, 135662. (doi: 10.1016/j.physletb.2020.135662)

Celentano, A. et al. (2020) First measurement of direct photoproduction of the a2(1320)0 meson on the proton. Physical Review C, 102(3), 032201(R). (doi: 10.1103/PhysRevC.102.032201)

Dieterle, M. et al. (2020) Helicity-dependent cross sections for the photoproduction of π0 pairs from nucleons. Physical Review Letters, 125(6), 062001. (doi: 10.1103/PhysRevLett.125.062001)

Burkert, V.D. et al. (2020) The CLAS12 spectrometer at Jefferson Laboratory. Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 959, 163419. (doi: 10.1016/j.nima.2020.163419)

Bashkanov, M. et al. (2020) Signatures of the d*(2380) Hexaquark in d(γ,pn→). Physical Review Letters, 124(13), 132001. (doi: 10.1103/PhysRevLett.124.132001)

Sokhoyan, V. et al. (2020) Measurement of the beam-helicity asymmetry in photoproduction of π0η pairs on carbon, aluminum, and lead. Physics Letters B, 802, 135243. (doi: 10.1016/j.physletb.2020.135243)

Schmidt, A. et al. (2020) Probing the core of the strong nuclear interaction. Nature, 578(7796), pp. 540-544. (doi: 10.1038/s41586-020-2021-6) (PMID:32103193)

MacGregor, I. J. D. (2020) Short range nucleon correlations studied with electron and photon probes. SciPost Physics Proceedings(3), 010. (doi: 10.21468/SciPostPhysProc.3.010)

Markov, N. et al. (2020) Exclusive π0p electroproduction off protons in the resonance region at photon virtualities 0.4GeV2 ≤ Q2 ≤ 1GeV2. Physical Review C, 101(1), 015208. (doi: 10.1103/PhysRevC.101.015208)

2019

Briscoe, W. J. et al. (2019) Cross section for γn → π0n measured at the Mainz A2 experiment. Physical Review C, 100(6), 065205. (doi: 10.1103/PhysRevC.100.065205)

Akondi, C. S. et al. (2019) Experimental study of the γp→K0Σ+, γn→K0Λ, and γn→K0Σ0 reactions at the Mainz Microtron. European Physical Journal A, 55(11), 202. (doi: 10.1140/epja/i2019-12924-x)

Duer, M. et al. (2019) Measurement of nuclear transparency ratios for protons and neutrons. Physics Letters B, 797, 134792. (doi: 10.1016/j.physletb.2019.07.039)

Hattawy, M. et al. (2019) Exploring the structure of the bound proton with deeply virtual Compton scattering. Physical Review Letters, 123(3), 032502. (doi: 10.1103/PhysRevLett.123.032502)

Duer, M. et al. (2019) Direct observation of proton-neutron short-range correlation dominance in heavy nuclei. Physical Review Letters, 122(17), 172502. (doi: 10.1103/PhysRevLett.122.172502)

Roy, P. et al. (2019) First measurements of the double-polarization observables F, P, and H in ω photoproduction off transversely polarized protons in the N* resonance region. Physical Review Letters, 122(16), 162301. (doi: 10.1103/PhysRevLett.122.162301) (PMID:31075002)

The CLAS Collaboration, et al. (2019) Modified structure of protons and neutrons in correlated pairs. Nature, 556(7744), pp. 354-358. (doi: 10.1038/s41586-019-0925-9) (PMID:30787453)

Bashkanov, M. et al. (2019) Deuteron photodisintegration by polarized photons in the region of the d⁎(2380). Physics Letters B, 789, pp. 7-12. (doi: 10.1016/j.physletb.2018.12.026)

Zhao, B. et al. (2019) Measurement of the beam spin asymmetry of e→p→e′p′η in the deep-inelastic regime with CLAS. Physics Letters B, 789, pp. 426-431. (doi: 10.1016/j.physletb.2018.12.065)

Golovatch, E. et al. (2019) First results on nucleon resonance photocouplings from the γp → π+π−p reaction. Physics Letters B, 788, pp. 371-379. (doi: 10.1016/j.physletb.2018.10.013)

2018

Goetz, J.T. et al. (2018) Ξ* photoproduction from threshold to W=3.3 GeV. Physical Review C, 98(6), 062201(R). (doi: 10.1103/PhysRevC.98.062201)

Käser, A. et al. (2018) First measurement of helicity-dependent cross sections in π0η photoproduction from quasi-free nucleons. Physics Letters B, 786, pp. 305-312. (doi: 10.1016/j.physletb.2018.10.006)

Ho, D. H. et al. (2018) Beam-target helicity asymmetry E in K0Λ and K0Σ0 photoproduction on the neutron. Physical Review C, 98(4), 045205. (doi: 10.1103/PhysRevC.98.045205)

Hirlinger Saylor, N. et al. (2018) Measurement of unpolarized and polarized cross sections for deeply virtual Compton scattering on the proton at Jefferson Laboratory with CLAS. Physical Review C, 98(4), 045203. (doi: 10.1103/PhysRevC.98.045203)

Lombardo, S. et al. (2018) Photoproduction of K+K− meson pairs on the proton. Physical Review D, 98(5), 052009. (doi: 10.1103/PhysRevD.98.052009)

Cohen, E. O. et al. (2018) Center of mass motion of short-range correlated nucleon pairs studied via the A(e,e'pp) reaction. Physical Review Letters, 121(9), 092501. (doi: 10.1103/PhysRevLett.121.092501) (PMID:30230869)

Duer, M. et al. (2018) Probing high-momentum protons and neutrons in neutron-rich nuclei. Nature, 560(7720), pp. 617-621. (doi: 10.1038/s41586-018-0400-z) (PMID:30104596)

Bono, J. et al. (2018) First measurement of Ξ− polarization in photoproduction. Physics Letters B, 783, pp. 280-286. (doi: 10.1016/j.physletb.2018.07.004)

Fedotov, G. V. et al. (2018) Measurements of the γvp→p′π+π− cross section with the CLAS detector for 0.4GeV2 < Q2 < 1.0GeV2 and 1.3GeV < W < 1.825GeV. Physical Review C, 98(2), 025203. (doi: 10.1103/PhysRevC.98.025203)

Chetry, T. et al. (2018) Differential cross section for γd → ωd using CLAS at Jefferson Lab. Physics Letters B, 782, pp. 646-651. (doi: 10.1016/j.physletb.2018.06.003)

Jawalkar, S. et al. (2018) Semi-inclusive π0 target and beam-target asymmetries from 6 GeV electron scattering with CLAS. Physics Letters B, 782, pp. 662-667. (doi: 10.1016/j.physletb.2018.06.014)

Adlarson, P. et al. (2018) Measurement of the decay η′→π0π0η at MAMI. Physical Review D, 98, 012001. (doi: 10.1103/PhysRevD.98.012001)

Kunkel, M. C. et al. (2018) Exclusive photoproduction of π0 up to large values of Mandelstam variables s,t, and u with CLAS. Physical Review C, 98(1), 015207. (doi: 10.1103/PhysRevC.98.015207)

Dieterle, M. et al. (2018) Photoproduction of π0 mesons off protons and neutrons in the second and third nucleon resonance region. Physical Review C, 97, 065205. (doi: 10.1103/PhysRevC.97.065205)

Prakhov, S. et al. (2018) High-statistics measurement of the η→3π0 decay at the Mainz Microtron. Physical Review C, 97, 065203. (doi: 10.1103/PhysRevC.97.065203)

Prakhov, S. et al. (2018) High-statistics measurement of the η → 3π0 decay at MAMI. Physical Review C, 97, 065203. (doi: 10.1103/PhysRevC.97.065203)

Sokhoyan, V. et al. (2018) Experimental study of the γp→π0ηp reaction with the A2 setup at the Mainz Microtron. Physical Review C, 97, 055212. (doi: 10.1103/PhysRevC.97.055212)

Park, K. et al. (2018) Hard exclusive pion electroproduction at backward angles with CLAS. Physics Letters B, 780, pp. 340-345. (doi: 10.1016/j.physletb.2018.03.026)

Roy, P. et al. (2018) Measurement of the beam asymmetry Σ and the target asymmetry T in the photoproduction of ω mesons off the proton using CLAS at Jefferson Laboratory. Physical Review C, 97(5), 055202. (doi: 10.1103/PhysRevC.97.055202)

Adhikari, K. P. et al. (2018) Measurement of the Q2 dependence of the deuteron spin structure function g1 and its moments at low Q2 with CLAS. Physical Review Letters, 120(6), 062501. (doi: 10.1103/PhysRevLett.120.062501)

Chandavar, S. et al. (2018) Double KS0 photoproduction off the proton at CLAS. Physical Review C, 97(2), 025203. (doi: 10.1103/PhysRevC.97.025203)

2017

Akbar, Z. et al. (2017) Measurement of the helicity asymmetry E in ω → π+π−π0 photoproduction. Physical Review C, 96(6), 065209. (doi: 10.1103/PhysRevC.96.065209)

Compton, N. et al. (2017) Measurement of the differential and total cross sections of the γd→K0Λ(p) reaction within the resonance region. Physical Review C, 96(6), 065201. (doi: 10.1103/PhysRevC.96.065201)

Hattawy, M. et al. (2017) First exclusive measurement of deeply virtual compton scattering off He4: toward the 3D tomography of nuclei. Physical Review Letters, 119(20), 202004. (doi: 10.1103/PhysRevLett.119.202004)

Collins, P. et al. (2017) Photon beam asymmetry Σ in the reaction γ→p → pω for Eγ = 1.152 to 1.876 GeV. Physics Letters B, 773, pp. 112-120. (doi: 10.1016/j.physletb.2017.08.015)

Mattione, P. T. et al. (2017) Differential cross section measurements for γn → π−p above the first nucleon resonance region. Physical Review C, 96(3), 035204. (doi: 10.1103/PhysRevC.96.035204)

Anisovich, A.V. et al. (2017) Differential cross sections and polarization observables from CLAS K* photoproduction and the search for new N* states. Physics Letters B, 771, pp. 142-150. (doi: 10.1016/j.physletb.2017.05.029)

Collins, P. et al. (2017) Photon beam asymmetry Σ for η and η′ photoproduction from the proton. Physics Letters B, 771, pp. 213-221. (doi: 10.1016/j.physletb.2017.05.045)

Isupov, E. L. et al. (2017) Measurements of ep→e′π+π−p′ cross sections with CLAS at 1.40 GeV < W < 2.0 GeV and 2.0 GeV2 < Q2 < 5.0 GeV2. Physical Review C, 96(2), 025209. (doi: 10.1103/PhysRevC.96.025209)

Dieterle, M. et al. (2017) First measurement of the polarization observable E and helicity-dependent cross sections in single π0 photoproduction from quasi-free nucleons. Physics Letters B, 770, pp. 523-531. (doi: 10.1016/j.physletb.2017.04.079)

Ho, D. et al. (2017) Beam-target helicity asymmetry for γ→n→→π−p in the N*resonance region. Physical Review Letters, 118(24), 242002. (doi: 10.1103/PhysRevLett.118.242002)

Rimal, D. et al. (2017) Measurement of two-photon exchange effect by comparing elastic e±p cross sections. Physical Review C, 95(6), 065201. (doi: 10.1103/PhysRevC.95.065201)

Kim, A. et al. (2017) Target and double spin asymmetries of deeply virtual π 0 production with a longitudinally polarized proton target and CLAS. Physics Letters B, 768, pp. 168-173. (doi: 10.1016/j.physletb.2017.02.032)

Kashevarov, V.L. et al. (2017) Study of η and η' photoproduction at MAMI. Physical Review Letters, 118(21), 212001. (doi: 10.1103/PhysRevLett.118.212001) (PMID:28598665)

Witthauer, L. et al. (2017) Helicity-dependent cross sections and double-polarization observable E in η photoproduction from quasifree protons and neutrons. Physical Review C, 95(5), 055201. (doi: 10.1103/PhysRevC.95.055201)

Adlarson, P. et al. (2017) Measurement of the ω→π0e+e− and η→e+e−γ Dalitz decays with the A2 setup at the Mainz Microtron. Physical Review C, 95, 035208. (doi: 10.1103/PhysRevC.95.035208)

Bedlinskiy, I. et al. (2017) Exclusive η electroproduction at W>2 GeV with CLAS and transversity generalized parton distributions. Physical Review C, 95(3), 035202. (doi: 10.1103/PhysRevC.95.035202)

Bosted, P. E. et al. (2017) Target and beam-target spin asymmetries in exclusive pion electroproduction for Q2>1GeV2 . I. ep→eπ+n. Physical Review C, 95(3), 035206. (doi: 10.1103/PhysRevC.95.035206)

Bosted, P. E. et al. (2017) Target and beam-target spin asymmetries in exclusive pion electroproduction for Q2>1 GeV2. II. ep→eπ0p. Physical Review C, 95(3), 035207. (doi: 10.1103/PhysRevC.95.035207)

Mayer, M. et al. (2017) Beam-target double-spin asymmetry in quasielastic electron scattering off the deuteron with CLAS. Physical Review C, 95(2), 024005. (doi: 10.1103/PhysRevC.95.024005)

Adlarson, P. et al. (2017) Measurement of the π0→e+e−γ Dalitz decay at the Mainz Microtron. Physical Review C, 95(2), 025202. (doi: 10.1103/PhysRevC.95.025202)

Sokhoyan, V. et al. (2017) Determination of the scalar polarizabilities of the proton using beam asymmetry Σ3 in Compton scattering. European Physical Journal A, 53(1), 14. (doi: 10.1140/epja/i2017-12203-0)

2016

MacGregor, I.J.D. (2016) Editorial – nuclear physics for cultural heritage. e-EPS, 24 Nov.

Bosted, P. E. et al. (2016) Target and beam-target spin asymmetries in exclusive π+ and π− electroproduction with 1.6- to 5.7-GeV electrons. Physical Review C, 94(5), 055201. (doi: 10.1103/PhysRevC.94.055201)

Gardner, S. et al. (2016) Photon asymmetry measurements of γp → π0p for Eγ = 320–650 MeV. European Physical Journal A, 52, 333. (doi: 10.1140/epja/i2016-16333-5)

Macková, A., MacGregor, D. , Azaiez, F., Nyberg, J. and Piasetzky, E. eds. (2016) Nuclear Physics for Cultural Heritage. Nuclear Physics Division of the European Physical Society. ISBN 9782759820917

Zheng, X. et al. (2016) Measurement of target and double-spin asymmetries for the e p → eπ+(n) reaction in the nucleon resonance region at low Q2. Physical Review C, 94(4), 045206. (doi: 10.1103/PhysRevC.94.045206)

Witthauer, L. et al. (2016) Insight into the narrow structure in η-photoproduction on the neutron from helicity dependent cross sections. Physical Review Letters, 117(13), 132505. (doi: 10.1103/PhysRevLett.117.132502) (PMID:27715117)

Käser, A. et al. (2016) Photoproduction of ηπ pairs off nucleons and deuterons. European Physical Journal A, 52(9), 272. (doi: 10.1140/epja/i2016-16272-1)

MacGregor, D. (2016) 2016 Lise Meitner prize. Europhysics News, 47(3), p. 8.

Paterson, C.A. et al. (2016) Photoproduction of Λ and Σ0 hyperons using linearly polarized photons. Physical Review C, 93(6), 065201. (doi: 10.1103/PhysRevC.93.065201)

Annand, J.R.M. et al. (2016) T and F asymmetries in π0 photoproduction on the proton. Physical Review C, 93(5), 055209. (doi: 10.1103/PhysRevC.93.055209)

Senderovich, I. et al. (2016) First measurement of the helicity asymmetry E in η photoproduction on the proton. Physics Letters B, 755, pp. 64-69. (doi: 10.1016/j.physletb.2016.01.044)

Dickson, R. et al. (2016) Photoproduction of the f1 (1285) meson. Physical Review C, 93(6), 065202. (doi: 10.1103/PhysRevC.93.065202)

2015

MacGregor, I.J. D. (2015) 2016 Lise Meitner Prize for Nuclear Science: call for nominations. Nuclear Physics News, 25(4), p. 39. (doi: 10.1080/10619127.2015.1104148)

MacGregor, I.J. D. (2015) In Memoriam: Robert O. Owens (1935–2015). Nuclear Physics News, 25(4), p. 40. (doi: 10.1080/10619127.2015.1104149)

Schumann, S. et al. (2015) Threshold π0 photoproduction on transverse polarised protons at MAMI. Physics Letters B, 750, pp. 252-258. (doi: 10.1016/j.physletb.2015.09.015)

Strauch, S. et al. (2015) First measurement of the polarization observable E in the p→(γ→,π+)n reaction up to 2.25 GeV. Physics Letters B, 750, pp. 53-58. (doi: 10.1016/j.physletb.2015.08.053)

Dieterle, M. et al. (2015) Photoproduction of π0-pairs off protons and off neutrons. European Physical Journal A, 51(11), 142. (doi: 10.1140/epja/i2015-15142-8)

Guler, N. et al. (2015) Precise determination of the deuteron spin structure at low to moderateQ2with CLAS and extraction of the neutron contribution. Physical Review C, 92, 055201. (doi: 10.1103/PhysRevC.92.055201)

Jo, H. S. et al. (2015) Cross sections for the exclusive photon electroproduction on the proton and generalized parton distributions. Physical Review Letters, 115, 212003. (doi: 10.1103/PhysRevLett.115.212003) (PMID:26636848)

Al Jebali, R. A.I. et al. (2015) A helium gas scintillator active target for photoreaction measurements. European Physical Journal A, 51, 123. (doi: 10.1140/epja/i2015-15123-y)

McCracken, M. E. et al. (2015) Search for baryon-number and lepton-number violating decays of Λ hyperons using the CLAS detector at Jefferson Laboratory. Physical Review D, 92, 072002. (doi: 10.1103/PhysRevD.92.072002)

Käser, A. et al. (2015) The isospin structure of photoproduction of πη pairs from the nucleon in the threshold region. Physics Letters B, 748, pp. 244-250. (doi: 10.1016/j.physletb.2015.07.007)

Adlarson, P. et al. (2015) Measurement of π0 photoproduction on the proton at MAMI C. Physical Review C, 92(2), 024617. (doi: 10.1103/PhysRevC.92.024617)

MacGregor, D. (2015) In memoriam: George C. Morrison (1930-2015). Europhysics News, 46(3), pp. 8-9.

Annand, J.R.M. et al. (2015) First measurement of target and beam-target asymmetries in the γp→π0ηp reaction. Physical Review C, 91(5), 055208. (doi: 10.1103/PhysRevC.91.055208)

Zachariou, N. et al. (2015) Determination of the beam-spin asymmetry of deuteron photodisintegration in the energy region Eγ=1.1–2.3 GeV. Physical Review C, 91, 055202. (doi: 10.1103/PhysRevC.91.055202)

Martemianov, M. et al. (2015) A new measurement of the neutron detection efficiency for the NaI Crystal Ball detector. Journal of Instrumentation, 10(4), T04001. (doi: 10.1088/1748-0221/10/04/T04001)

Park, K. et al. (2015) Measurements ofep→e′π+nat1.6<W<2.0 GeV and extraction of nucleon resonance electrocouplings at CLAS. Physical Review C, 91, 045203. (doi: 10.1103/PhysRevC.91.045203)

Strakovsky, I. I. et al. (2015) Photoproduction of the ωmeson on the proton near threshold. Physical Review C, 91(4), 045207. (doi: 10.1103/PhysRevC.91.045207)

Martel, P. P. et al. (2015) Measurements of double-polarized compton scattering asymmetries and extraction of the proton spin polarizabilities. Physical Review Letters, 114(11), 112501. (doi: 10.1103/PhysRevLett.114.112501)

Pisano, S. et al. (2015) Single and double spin asymmetries for deeply virtual Compton scattering measured with CLAS and a longitudinally polarized proton target. Physical Review D, 91, 052014. (doi: 10.1103/PhysRevD.91.052014)

Adikaram, D. et al. (2015) Towards a resolution of the proton form factor problem: new electron and positron scattering data. Physical Review Letters, 114, 062003. (doi: 10.1103/PhysRevLett.114.062003)

Seder, E. et al. (2015) Longitudinal target-spin asymmetries for deeply virtual Compton scattering. Physical Review Letters, 114(3), 032001. (doi: 10.1103/PhysRevLett.114.032001)

2014

Costanza, S. et al. (2014) Helicity dependence of the γ 3He → πX reactions in the Δ(1232) resonance region. European Physical Journal A, 50(173), -173:. (doi: 10.1140/epja/i2014-14173-y)

Hen, O. et al. (2014) Momentum sharing in imbalanced Fermi systems. Science, 346(6209), pp. 614-617. (doi: 10.1126/science.1256785)

Mestayer, M. D. et al. (2014) Strangeness suppression of qq¯ creation observed in exclusive reactions. Physical Review Letters, 113(15), p. 152004. (doi: 10.1103/PhysRevLett.113.152004)

Gabrielyan, M. et al. (2014) Induced polarization of Λ(1116) in kaon electroproduction. Physical Review C, 90(3), 035202. (doi: 10.1103/PhysRevC.90.035202)

Akondi, C. S. et al. (2014) Measurement of the transverse target and beam-target asymmetries in η Meson Photoproduction at MAMI. Physical Review Letters, 113(10), p. 102001. (doi: 10.1103/PhysRevLett.113.102001)

Bedlinskiy, I. et al. (2014) Publisher's Note: Exclusive π0 electroproduction at W > 2 GeV with CLAS [Phys. Rev. C 90, 025205 (2014)]. Physical Review C, 90(3), 039901. (doi: 10.1103/PhysRevC.90.039901)

Prok, Y. et al. (2014) Precision measurements of g1 of the proton and of the deuteron with 6 GeV electrons. Physical Review C, 90(2), (doi: 10.1103/PhysRevC.90.025212)

Nefkens, B. M.K. et al. (2014) New measurement of the rare decay η→π0γγ with the Crystal Ball/TAPS detectors at the Mainz Microtron. Physical Review C, 90(2), 025206. (doi: 10.1103/PhysRevC.90.025206)

Bedlinskiy, I. et al. (2014) Exclusive π⁰ electroproduction at W>2 GeV with CLAS. Physical Review C, 90(2), 025205. (doi: 10.1103/PhysRevC.90.025205)

Jude, T.C. et al. (2014) $K^{+}\Lambda$ and $K^{+}{\Sigma }^0$ photoproduction with fine center-of-mass energy resolution. Physics Letters B, 735, pp. 112-118. (doi: 10.1016/j.physletb.2014.06.015)

Werthmüller, D. et al. (2014) Quasifree photoproduction of η mesons off protons and neutrons. Physical Review C, 90(1), 015205. (doi: 10.1103/PhysRevC.90.015205)

Dey, B. et al. (2014) Publisher's Note: Data analysis techniques, differential cross sections, and spin density matrix elements for the reaction γp→ϕp [Phys. Rev. C89, 055208 (2014)]. Physical Review C, 90(1), 019901. (doi: 10.1103/PhysRevC.90.019901)

Tarbert, C. M. et al. (2014) The neutron skin of ²⁰⁸Pb from coherent pion photoproduction. Physical Review Letters, 112(24), p. 242502. (doi: 10.1103/PhysRevLett.112.242502)

Seraydaryan, H. et al. (2014) ϕ-meson photoproduction on hydrogen in the neutral decay mode. Physical Review C, 89(5), 055206. (doi: 10.1103/PhysRevC.89.055206)

Dey, B. et al. (2014) Data analysis techniques, differential cross sections, and spin density matrix elements for the reaction γp→φp. Physical Review C, 89(5), 055208. (doi: 10.1103/PhysRevC.89.055208)

Tkachenko, S. et al. (2014) Measurement of the structure function of the nearly free neutron using spectator tagging in inelastic ²H(e,e′p_s)X scattering with CLAS. Physical Review C, 89(4), 045206. (doi: 10.1103/PhysRevC.89.045206)

Aguar-Bartolomé, P. et al. (2014) New determination of the η transition form factor in the Dalitz decay η→e+e−γ with the Crystal Ball/TAPS detectors at the Mainz Microtron. Physical Review C, 89(4), 044608. (doi: 10.1103/PhysRevC.89.044608)

Dieterle, M. et al. (2014) Photoproduction of π⁰ mesons off neutrons in the nucleon resonance region. Physical Review Letters, 112(14), p. 142001. (doi: 10.1103/PhysRevLett.112.142001)

Gohn, W. et al. (2014) Beam-spin asymmetries from semi-inclusive pion electroproduction. Physical Review D, 89(7), 072011. (doi: 10.1103/PhysRevD.89.072011)

Oberle, M. et al. (2014) Measurement of the beam-helicity asymmetry I⊙ in the photoproduction of pi⁰ pi^±- pairs off the protons and off the neutrons. European Physical Journal A, 50, p. 54. (doi: 10.1140/epja/i2014-14054-5)

MacGregor, I.J. D. (2014) IBA-Europhysics prize in applied nuclear science and nuclear methods in medicine. EPJ Web of Conferences, 66, 00003. (doi: 10.1051/epjconf/20146600003)

Myers, L. S. et al. (2014) Compton scattering from ¹²C using tagged photons in the energy range 65–115 MeV. Physical Review C, 89(3), 035202. (doi: 10.1103/PhysRevC.89.035202)

Nikolaev, A. et al. (2014) Determination of the η mass with the Crystal Ball at MAMI-B. European Physical Journal A, 50(3), p. 58. (doi: 10.1140/epja/i2014-14058-1)

Moriya, K. et al. (2014) Spin and parity measurement of the Λ(1405) baryon. Physical Review Letters, 112(8), 082004. (doi: 10.1103/PhysRevLett.112.082004)

Dugger, M. et al. (2014) Publisher's Note: Beam asymmetry Σ for π+ and π0 photoproduction on the proton for photon energies from 1.102 to 1.862 GeV [Phys. Rev. C88, 065203 (2013)]. Physical Review C, 89(2), 029901. (doi: 10.1103/PhysRevC.89.029901)

MacGregor, I.J.D. (2014) Baryons 2013: international conference on the structure of Baryons Glasgow, 24-28 June 2013. Nuclear Physics News, 24(1), pp. 33-34. (doi: 10.1080/10619127.2013.855576)

Sikora, M.H. et al. (2014) Measurement of the H1(γ, p→)π0 reaction using a novel nucleon spin polarimeter. Physical Review Letters, 112(2), 022501. (doi: 10.1103/PhysRevLett.112.022501)

MacGregor, I. J. D. (2014) Research with real photons at the MAMI 1.6 GeV electron accelerator. EPJ Web of Conferences, 72, 00014. (doi: 10.1051/epjconf/20147200014)

2013

Dugger, M. et al. (2013) Beam asymmetry Σ for π+ and π0 photoproduction on the proton for photon energies from 1.102 to 1.862 GeV. Physical Review C, 88(6), Art. 065203. (doi: 10.1103/PhysRevC.88.065203)

Werthmueller, D. et al. (2013) Narrow structure in the excitation function of η photoproduction off the neutron. Physical Review Letters, 111(23), Art. 232001. (doi: 10.1103/PhysRevLett.111.232001) (PMID:24476257)

Witthauer, L. et al. (2013) Quasi-free photoproduction of η-mesons off 3He nuclei. European Physical Journal A, 49(154), (doi: 10.1140/epja/i2013-13154-0)

Aguar-Bartolomé, P. et al. (2013) Measurement of the γp→K0Σ+ reaction with the crystal Ball/TAPS detectors at the mainz microtron. Physical Review C, 88(4), Art. 044601. (doi: 10.1103/PhysRevC.88.044601)

Moriya, K. et al. (2013) Differential photoproduction cross sections of the Σ0(1385), Λ(1405), and Λ(1520). Physical Review C, 88(4), 045201. (doi: 10.1103/PhysRevC.88.045201)

Moriya, K. et al. (2013) Publisher's Note: Differential photoproduction cross sections of the Σ0 (1385), Λ(1405), and Λ(1520) [Phys. Rev. C88, 045201 (2013)]. Physical Review C, 88(4), 049902. (doi: 10.1103/PhysRevC.88.049902)

Thiel, M. et al. (2013) In-medium modifications of the ω meson near the production threshold. European Physical Journal A, 49(132), (doi: 10.1140/epja/i2013-13132-6)

Hornidge, D. et al. (2013) Accurate test of chiral dynamics in the ~γp → π 0p reaction. Physical Review Letters, 111(6), Art. 062004. (doi: 10.1103/PhysRevLett.111.062004) (PMID:23971564)

Moteabbed, M. et al. (2013) Demonstration of a novel technique to measure two-photon exchange effects in elastic e±p scattering. Physical Review C, 88, 025210:1-025210:14. (doi: 10.1103/PhysRevC.88.025210)

Pomerantz, I. et al. (2013) Hard two-body photodisintegration of ³He. Physical Review Letters, 110(24), (doi: 10.1103/PhysRevLett.110.242301) (PMID:25165915)

Bartolome, P. et al. (2013) First measurement of the helicity dependence of He-3 photoreactions in the Delta(1232) resonance region. Physics Letters B, 723(1-3), pp. 71-77. (doi: 10.1016/j.physletb.2013.04.057)

Tang, W. et al. (2013) Cross sections for the γp→K*+Λ and γp→K*+Σ0 reactions measured at CLAS. Physical Review C, 87(6), Art. 065204. (doi: 10.1103/PhysRevC.87.065204)

Hen, O. et al. (2013) Measurement of transparency ratios for protons from short-range correlated pairs. Physics Letters B, 722(1-3), pp. 63-68. (doi: 10.1016/j.physletb.2013.04.011)

Maghrbi, Y. et al. (2013) Double pion photoproduction off nuclei: are there effects beyond final-state interaction? Physics Letters B, 722(1-3), pp. 69-75. (doi: 10.1016/j.physletb.2013.04.014)

Robinson, J. et al. (2013) Measurements of 12C(→γ,pp) photon asymmetries for Eγ= 200–450 MeV. European Physical Journal A, 49(65), (doi: 10.1140/epja/i2013-13065-0)

Oberle, M. et al. (2013) Measurement of the beam-helicity asymmetry I^⊙ in the photoproduction of π⁰-pairs off the proton and off the neutron. [Key Findings]

Nepali, C. S. et al. (2013) Transverse polarization of Σ+(1189) in photoproduction on a hydrogen target in CLAS. Physical Review C, 87(4), 045206. (doi: 10.1103/PhysRevC.87.045206)

Maghrbi, Y. et al. (2013) Coherent photoproduction of π0- and η-mesons off 7Li. European Physical Journal A, 49(38), (doi: 10.1140/epja/i2013-13038-3)

Carman, D. et al. (2013) Separated structure functions for exclusive K+Λ and K+Σ0 electroproduction at 5.5 GeV measured with CLAS. Physical Review C, 87(2), Art. 025204. (doi: 10.1103/PhysRevC.87.025204)

Park, K. et al. (2013) Deep exclusive π+ electroproduction off the proton at CLAS. European Physical Journal A, 49(1), p. 16. (doi: 10.1140/epja/i2013-13016-9)

Schmidt, A. et al. (2013) Erratum: test of low-energy theorems for H1(γ→ ,π0)H1 in the threshold region [Phys. Rev. Lett. 87, 232501 (2001)]. Physical Review Letters, 110(3), Art. 039903(E). (doi: 10.1103/PhysRevLett.110.039903)

Khetarpal, P. et al. (2013) Near-threshold neutral pion electroproduction at high momentum transfers and generalized form factors. Physical Review C, 87(4), (doi: 10.1103/PhysRevC.87.045205)

Lu, H.Y. et al. (2013) First observation of the Λ(1405) line shape in electroproduction. Physical Review C, 88(4), 045202-1-045202-7. (doi: 10.1103/PhysRevC.88.045202)

MacGregor, I.J.D. (2013) IBA-Europhysics prize in applied nuclear science and nuclear methods in medicine. In: INPC 2013 International Nuclear Physics Conference, Florence, Italy, 2-7 Jun 2013,

Moriya, K. et al. (2013) Measurement of the Σπ photoproduction line shapes near the Λ(1405). Physical Review C, 87(3), 035206. (doi: 10.1103/PhysRevC.87.035206)

2012

Anghinolfi, M. et al. (2012) Comment on "Observation of a narrow structure in H-1(gamma,K-S(0))X via interference with phi-meson production". Physical Review C, 86(6), 069801:1-069801:2. (doi: 10.1103/PhysRevC.86.069801)

Freeman, S., Andreyev, A., Bruce, A., Deacon, A., Jenkins, D., Joss, D., MacGregor, D. , Regan, P., Simpson, J., Tungate, G., Wadsworth, B. and Watts, D. (Eds.) (2012) Rutherford Centennial Conference on Nuclear Physics 8–12 August 2011, Manchester, UK. Series: Journal of Physics Conference Series. Institute of Physics.

Bedlinskiy, I. et al. (2012) Measurement of exclusive π0 electroproduction structure functions and their relationship to transverse generalized parton distributions. Physical Review Letters, 109(11), Art. 112001. (doi: 10.1103/PhysRevLett.109.112001)

Mokeev, V. I. et al. (2012) Experimental study of the P11(1440) and D13(1520) resonances from the CLAS data on ep→e′π+π−p′. Physical Review C, 86(3), Art. 035203. (doi: 10.1103/PhysRevC.86.035203)

Erni, W. et al. (2012) Technical Design Report for the PANDA Micro Vertex Detector. Technical Report. FAIR, Darmstadt.

Zehr, F. et al. (2012) Photoproduction of π0π0 - and π0π+ -pairs off the proton from threshold to the second resonance region. European Physical Journal A, 48(98), (doi: 10.1140/epja/i2012-12098-1)

El Fassi, L. et al. (2012) Evidence for the onset of color transparency in ρ⁰ electroproduction off nuclei. Physics Letters B, 712(4-5), pp. 326-330. (doi: 10.1016/j.physletb.2012.05.019)

Baghdasaryan, H. et al. (2012) Comparison of forward and backward pp pair knockout in 3He(e,e′pp)n. Physical Review C, 85(6), 064318-064318. (doi: 10.1103/PhysRevC.85.064318)

Kashevarov, V. L. et al. (2012) Experimental study of the γp→π0π0p reaction with the Crystal Ball/TAPS detector system at the Mainz Microtron. Physical Review C, 85(6), Art. 064610. (doi: 10.1103/PhysRevC.85.064610)

Baillie, N. et al. (2012) Publisher’s Note: Measurement of the neutron F2 structure function via spectator tagging with CLAS [Phys. Rev. Lett.108, 142001 (2012)]. Physical Review Letters, 108(19), 199902. (doi: 10.1103/PhysRevLett.108.199902)

Baillie, N. et al. (2012) Measurement of the neutron F_{2} structure function via spectator tagging with CLAS. Physical Review Letters, 108(14), (doi: 10.1103/PhysRevLett.108.142001)

Keller, D. et al. (2012) Publisher’s note: branching ratio of the electromagnetic decay of the Σ+(1385) Phys. Rev. D85, 052004 (2012). Physical Review D, 85(5), 059903. (doi: 10.1103/PhysRevD.85.059903)

Pheron, F. et al. (2012) Coherent photoproduction of η-mesons off ³He – search for η-mesic nuclei. Physics Letters B, 709(1-2), pp. 21-27. (doi: 10.1016/j.physletb.2012.01.075)

Keller, D. et al. (2012) Branching ratio of the electromagnetic decay of the Σ+(1385). Physical Review D, 85(5), Art. 052004. (doi: 10.1103/PhysRevD.85.052004)

Park, K. et al. (2012) Measurement of the generalized form factors near threshold via γ∗p→nπ+ at high Q2. Physical Review C, 85(3), Art. 035208. (doi: 10.1103/PhysRevC.85.035208)

Glazier, D.I. et al. (2012) Angular distribution of coherent bremsstrahlung. Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 664(1), pp. 132-139. (doi: 10.1016/j.nima.2011.10.053)

Egiyan, H. et al. (2012) Upper limits for the photoproduction cross section for the Φ−−(1860) pentaquark state off the deuteron. Physical Review C, 85(1), Art. 015205. (doi: 10.1103/PhysRevC.85.015205)

Mancell, J. and MacGregor, I.J.D. (2012) Eta photoproduction on the proton. In: Rutherford Centennial Conference on Nuclear Physics, Manchester, UK, 8-12 Aug 2011, pp. 1-5. (doi: 10.1088/1742-6596/381/1/012024)

2011

Aghasyan, M. et al. (2011) Precise measurements of beam spin asymmetries in semi-inclusive π0 production. Physics Letters B, 704(5), pp. 397-402. (doi: 10.1016/j.physletb.2011.09.044)

McNicoll, E. F. et al. (2011) Erratum: experimental study of the γp→ηp reaction with the crystal ball detector at the Mainz Microtron (MAMI-C) [Phys. Rev. C 82, 035208 (2010)]. Physical Review C, 84(2), Art. 029901(E). (doi: 10.1103/PhysRevC.84.029901)

Berghäuser, H. et al. (2011) Determination of the η-transition form factor in the γp→pη→pγe⁺e⁻ reaction. Physics Letters B, 701(5), pp. 562-567. (doi: 10.1016/j.physletb.2011.06.069)

Keller, D. et al. (2011) Electromagnetic decay of the Σ0(1385) to Λγ. Physical Review D, 83(7), 072004. (doi: 10.1103/PhysRevD.83.072004)

Nasseripour, R. et al. (2011) Coherent photoproduction of π+ from He3. Physical Review C, 83(3), 034001. (doi: 10.1103/PhysRevC.83.034001)

Daniel, A. et al. (2011) Measurement of the nuclear multiplicity ratio for hadronization at CLAS. Physics Letters B, 706(1), pp. 26-31. (doi: 10.1016/j.physletb.2011.10.071)

MacGregor, I.J.D. (2011) Ernest Rutherford his genius shaped our modern world. Europhysics News, 42(5), pp. 18-21. (doi: 10.1051/epn/2011503)

2010

Baghdasaryan, H. et al. (2010) Tensor correlations measured He3(e,e′pp)n. Physical Review Letters, 105(22), Art. 222501. (doi: 10.1103/PhysRevLett.105.222501)

Kashevarov, V.L. et al. (2010) First measurement of the circular beam asymmetry in the γ p → π⁰ηp reaction. Physics Letters B, 693(5), pp. 551-554. (doi: 10.1016/j.physletb.2010.09.028)

MacGregor, I. (2010) IBA-Europhysics Prize 2011 for applied nuclear science and nuclear methods in medicine. Nuclear Physics News, 20(4), p. 39.

McNicoll, E.F. et al. (2010) Experimental study of the γp→ηp reaction with the Crystal Ball detector at the Mainz Microtron (MAMI-C). Physical Review C, 82(3), 035208. (doi: 10.1103/PhysRevC.82.035208)

Dey, B. et al. (2010) Differential cross sections and recoil polarizations for the reaction gamma p -> K(+)Sigma(0). Physical Review C, 82(2), Art. 025202. (doi: 10.1103/PhysRevC.82.025202)

Schumann, S. et al. (2010) Radiative π⁰ photoproduction on protons in the Δ⁺ (1232) region. European Physical Journal A, 43(3), pp. 269-282. (doi: 10.1140/epja/i2010-10925-y)

Bracco, A., Chomaz, P., Gaardhøje, J.J., Makarow, M., Heenen, P.-H., Rosner, G., Kaiser, R. , MacGregor, D. , Widmann, E. and Korner, G.E. (2010) Perspectives of Nuclear Physics in Europe: NuPECC Long Range Plan 2010. Discussion Paper. European Science Foundation.

Middleton, D. et al. (2010) Knockout of proton-neutron pairs from O-16 with electromagnetic probes. European Physical Journal A, 43(2), pp. 137-143. (doi: 10.1140/epja/i2009-10902-7)

2009

Kashevarov, V.L. et al. (2009) Photoproduction of π⁰ η on protons and the Δ (1700)D₃₃ -resonance. European Physical Journal A, 42(2), pp. 141-149. (doi: 10.1140/epja/i2009-10868-4)

Middleton, D.G. et al. (2009) Investigation of the exclusive ³He(e,e^′pn)¹H reaction. Physical Review Letters, 103(15), p. 152501. (doi: 10.1103/PhysRevLett.103.152501)

Krambrich, D. et al. (2009) Beam-helicity asymmetries in double-pion photoproduction off the proton. Physical Review Letters, 103(5), 052002. (doi: 10.1103/PhysRevLett.103.052002)

Starostin, A. et al. (2009) Search for the charge-conjugation-forbidden decay ω→ηπ⁰. Physical Review C, 79(6), 065201. (doi: 10.1103/PhysRevC.79.065201)

Erni, W. et al. (2009) Physics Performance Report for PANDA Strong Interaction Studies with Antiprotons. Project Report. FAIR, Darmstadt.

Prakhov, S. et al. (2009) Measurement of the slope parameter α for the η→3π(0) decay with the Crystal Ball detector at the Mainz Microtron (MAMI-C). Physical Review C, 79(3), 035204. (doi: 10.1103/PhysRevC.79.035204)

Unverzagt, M. et al. (2009) Determination of the Dalitz plot parameter α for the decay η → 3 π0 with the Crystal Ball at MAMI-B. European Physical Journal A, 39(2), pp. 169-177. (doi: 10.1140/epja/i2008-10710-7)

Erni, W. et al. (2009) Technical Design Report for the PANDA Solenoid and Dipole Spectrometer Magnets. Technical Report. FAIR, Darmstadt.

2008

Erni, W. et al. (2008) Technical Design Report for PANDA Electromagnetic Calorimeter (EMC). Technical Report. FAIR, Darmstadt.

Middleton, D.G. et al. (2008) ³He(e,e′pp) and ³He(e,e′pn) reactions at AmPS and MAMI. Few: Body Systems, 44(1-4), pp. 171-174. (doi: 10.1007/s00601-008-0283-x)

Sarantsev, A. et al. (2008) New results on the Roper resonance and the P-11 partial wave. Physics Letters B, 659(1-2), pp. 94-100. (doi: 10.1016/j.physletb.2007.11.055)

Tarbert, C.M. et al. (2008) Incoherent neutral pion photoproduction on C-12. Physical Review Letters, 100(13), (doi: 10.1103/PhysRevLett.100.132301)

2007

Bloch, F. et al. (2007) Double pion photoproduction off Ca-40. European Physical Journal A, 32, pp. 219-228. (doi: 10.1140/epja/i2007-10383-2)

Harrington, N. et al. (2007) Experimental study of the halo nucleus He-6 using the Li-6(gamma,pi(+))He-6 reaction. Physical Review C, 75, (doi: 10.1103/PhysRevC.75.044311)

Watts, D. et al. (2007) Dependence of the C-12 ((gamma)over-right-arrow, pd) reaction on photon linear polarisation. Physics Letters B, 647, pp. 88-92. (doi: 10.1016/j.physletb.2007.02.013)

2006

Middleton, D.G. et al. (2006) Erratum: First measurements of the ¹⁶O(e, e'pn)¹⁴N reaction. European Physical Journal A, 30(2), p. 469. (doi: 10.1140/epja/i2006-10131-8)

MacGregor, I.J.D. and Kaiser, R. (Eds.) (2006) Hadron Physics. Series: Scottish graduate series. Taylor and Francis: New York, NY. ISBN 9781584887058

Middleton, D. et al. (2006) First measurements of the O-16(e, e ' pn)N-14 reaction. European Physical Journal A, 29, pp. 261-270. (doi: 10.1140/epja/i2005-10314-9)

Morrow, S., Branford, D., Fohl, K., McGeorge, J., Adler, J., Hansen, K., Isaksson, L., Lundin, M., MacGregor, I. and Schroder, B. (2006) High-resolution study of the C-12(gamma,p gamma')B-11 reaction using a HpGe detector to resolve excited states of B-11 through the observation of their gamma-ray decays. Physical Review C, 73, (doi: 10.1103/PhysRevC.73.044611)

2005

Kellie, J. et al. (2005) The selection and performance of diamond radiators used in coherent bremsstrahlung experiments. Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 545(1-2), pp. 164-180. (doi: 10.1016/j.nima.2004.12.042)

Pfeiffer, M. et al. (2005) Comment on "Photoproduction of eta-mesic He-3": reply. Physical Review Letters, 94(4), Art. 049102. (doi: 10.1103/PhysRevLett.94.049102)

Ahrens, J. et al. (2005) Measurement of the pi(+)-meson polarizabilities via the gamma P ->gamma pi(+)n reaction. European Physical Journal A, 23, pp. 113-127. (doi: 10.1140/epja/i2004-10056-2)

Glazier, D. et al. (2005) Measurement of the electric form factor of the neutron at Q(2)=0.3-0.8 (GeV/c)(2). European Physical Journal A, 24, pp. 101-109. (doi: 10.1140/epja/i2004-10115-8)

2004

Krusche, B. et al. (2004) Photoproduction of pi(0)-mesons from nuclei. European Physical Journal A, 22(2), pp. 277-291. (doi: 10.1140/epja/i2004-10033-9)

MacGregor, I.J.D. (2004) Photoinduced two-nucleon emission in near super-parallel kinematics. In: 6th International Workshop on Electromagnetically Induced 2-Hadron Emission, Pavia, Italy, 24-27 Sept 2003, pp. 129-141.

Kotulla, M. et al. (2004) Double pi⁰ photoproduction off the proton at threshold. Physics Letters B, 578(1-2), 63 -68. (doi: 10.1016/j.physletb.2003.10.056)

Pfeiffer, M. et al. (2004) Photoproduction of eta-mesic He-3. Physical Review Letters, 92, (doi: 10.1103/PhysRevLett.92.252001)

2003

Watts, D.P. et al. (2003) Three-nucleon mechanisms in photoreactions. Physics Letters B, 553(1-2), 25 -30. (doi: 10.1016/S0370-2693(02)03186-6)

2002

Kotulla, M. et al. (2002) The reaction gamma p ->pi(0) gamma' p and the magnetic dipole moment of the Delta(+)(1232) resonance. Physical Review Letters, 89(27), Art. 272001. (doi: 10.1103/PhysRevLett.89.272001)

Messchendorp, J.G. et al. (2002) In-medium modifications of the pi pi interaction in photon-induced reactions. Physical Review Letters, 89(22), p. 222302. (doi: 10.1103/PhysRevLett.89.222302)

Branford, D. et al. (2002) Investigation of Delta-medium effects using the He-4(gamma,pi(+)n)H-3 and He-4(gamma,pi(+)p)nnn reactions. Physical Review C, 66(1), 015208. (doi: 10.1103/PhysRevC.66.015208)

Hejny, V. et al. (2002) Threshold enhancement in eta photoproduction from H-2 and He-4. European Physical Journal A, 13(4), 493 -499. (doi: 10.1140/epja/iepja1345)

2001

Langgartner, W. et al. (2001) Direct observation of a rho decay of the D-13(1520) baryon resonance. Physical Review Letters, 87(5), art 052001. (doi: 10.1103/PhysRevLett.87.052001)

MacGregor, I.J.D. (2001) Two-nucleon emission with polarised photons. In: 5th International Workshop on Electromagnetically Induced 2-Hadron Emission, Lund, Sweden, 13-16 Jun 2001, pp. 314-324.

Boland, M.J. et al. (2001) A new state in 6He following the 7Li(γ,p)6He reaction. In: 5th International Workshop on Electromagnetically Induced 2-Hadron Emission, Lund, Sweden, 13-16 Jun 2001, pp. 264-268.

Boland, M.J. et al. (2001) Excitations in the halo nucleus ⁶He following the ⁷Li(gamma,p)⁶He reaction. Physical Review C, 64(3), art -031601. (doi: 10.1103/PhysRevC.64.031601)

Krusche, B., Ahrens, J., Beck, R., MacGregor, I.J.D. , McGeorge, J.C., Metag, V. and Stroher, H. (2001) In-medium properties of the D₁₃(1520)nucleon resonance. Physical Review Letters, 86(21), 4764 -4767. (doi: 10.1103/PhysRevLett.86.4764)

Powrie, C.J.Y. et al. (2001) Polarized photon measurements of the 12C(gamma over-right- arrow,pp) and 12C(gamma over-right-arrow,pn) reactions for Egamma=160-350 MeV. Physical Review C, 6403(3), art 034602. (doi: 10.1103/PhysRevC.64.034602)

Schmidt, A. et al. (2001) Test of low-energy theorems for H-1(gamma over-right- arrow,pi(0))H-1 in the threshold region. Physical Review Letters, 8723(23), art 232501. (doi: 10.1103/PhysRevLett.87.232501)

2000

Branford, D. et al. (2000) Nuclear pion photoproduction in the Delta resonance region. Physical Review C, 61(1), 014603. (doi: 10.1103/PhysRevC.61.014603)

Watts, D.P. et al. (2000) The ¹²C(gamma,NN) reaction studied over a wide kinematic range. Physical Review C, 62(1), 014616-1-014616-15. (doi: 10.1103/PhysRevC.62.014616)

1999

McAllister, S.J. et al. (1999) The (γ,pd) reaction in ¹²C. Physical Review C, 60, 044610. (doi: 10.1103/PhysRevC.60.044610)

Ireland, D.G. , MacGregor, I.J.D. and Ryckebusch, J. (1999) Interpretation of two-nucleon photoemission data. Physical Review C, 59(6), pp. 3297-3303. (doi: 10.1103/PhysRevC.59.3297)

Franczuk, S. et al. (1999) ¹²C(,pn) photon asymmetry for Eγ=180–340 MeV. Physics Letters B, 450(4), pp. 332-338. (doi: 10.1016/S0370-2693(99)00184-7)

MacGregor, I.J.D. (1999) Recent γNN Results and Future Plans. In: 4th International Workshop on Electromagnetically Induced 2-Hadron Emission, Granada, Spain, 26-29 May 1999, pp. 339-352.

1998

Yau, T.T.H. et al. (1998) The angular distribution of the ¹²C(γ,pn) reaction for Eγ=120−150 MeV. European Physical Journal A, 1(3), pp. 241-244. (doi: 10.1007/s100500050055)

MacGregor, I.J.D. et al. (1998) Mechanisms in the ¹²C(γ,pn) and (γ,pp)reactions. Physical Review Letters, 80(2), pp. 245-248. (doi: 10.1103/PhysRevLett.80.245)

Harty, P.D. et al. (1998) Investigation of multiparticle final states in C-12 photoreactions. Physical Review C, 57(1), pp. 123-128. (doi: 10.1103/PhysRevC.57.123)

1997

Beck, R. et al. (1997) Measurement of the E2/M1 ratio in the N->Delta transition using the reaction p(gamma,p)pi(0) (Phys. Rev. Lett. vol 78, pg 606, 1997). Physical Review Letters, 79(22), p. 4515. (doi: 10.1103/PhysRevLett.79.4515.2)

Liang, M. et al. (1997) 12C(γ,π+n) and 12C(γ,π+p) reactions across the Δ resonance region. Physics Letters B, 411(3-4), pp. 244-248. (doi: 10.1016/S0370-2693(97)01005-8)

Beck, R. et al. (1997) Measurement of the E2/M1 Ratio in the N→Δ Transition using the reaction p(γγ ,p)πo. Physical Review Letters, 78(4), pp. 606-609. (doi: 10.1103/PhysRevLett.78.606)

Annand, J.R.M. et al. (1997) Population of states in 15O following the 16O(γ,n) reaction. Project Report. University of Lund. (Unpublished)

Grabmayr, P. et al. (1997) Mechanisms of the 12C(gamma,NN) reactions at Egamma = 114 - 600 MeV. In: 14th International Conference on Particles and Nuclei, Williamsburg, VA, USA, 22 -28 May 1996, pp. 296-297.

Laing, M. et al. (1997) Exclusive charged pion photo-production in 12C. In: Li, L.F., Phua, K.K., Wong, S.S.M. and Young, B.L. (eds.) Looking to the 21st Century: Proceedings of the First International Conference on Frontiers of Physics : Joint Meeting of the Chinese Physical Societies Shantou, China 5-9 August. World Scientific, pp. 646-651.

Liang, M. et al. (1997) Quasifree pion photo-production and FSI in the nuclear medium at delta-resonance energies. In: 14th International Conference on Particles and Nuclei, Williamsburg, VA, USA, 22 -28 May 1996, pp. 298-300.

1996

Wichmann, R. et al. (1996) Photoemission of protons from 4He in theΔ-resonance region. Zeitschrift für Physik A: Hadrons and Nuclei, 355(1), pp. 169-177. (doi: 10.1007/BF02769681)

Lamparter, T. et al. (1996) On photonuclear reaction mechanisms at intermediate energies. Zeitschrift für Physik A: Hadrons and Nuclei, 355(1), pp. 1-3. (doi: 10.1007/s002180050069)

MacGregor, I.J.D. et al. (1996) PiP - A large solid angle scintillation telescope for detecting protons and pions. Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 382(3), pp. 479-489. (doi: 10.1016/S0168-9002(96)00844-3)

Harty, P.D. et al. (1996) The contribution of 2N photon absorption in 12C(γ,2N) reactions for Eγ = 150–400 MeV. Physics Letters B, 380(3-4), pp. 247-252. (doi: 10.1016/0370-2693(96)00508-4)

MacKenzie, J.A. et al. (1996) Quasifree π+ production studied using the C12(γ, π+n)B11 reaction in the Δ(1232) resonance region. Physical Review C, 54(1), R6-R9. (doi: 10.1103/PhysRevC.54.R6)

Roebig-Landau, M. et al. (1996) Near threshold photoproduction of η-mesons from complex nuclei. Physics Letters B, 373(1-3), pp. 45-50. (doi: 10.1016/0370-2693(96)00125-6)

Grabmayr, P. et al. (1996) Excitation functions for the two-nucleon photoabsorption in Li-6. Physics Letters B, 370(1-2), pp. 17-21. (doi: 10.1016/0370-2693(95)01581-7)

Fuchs, M. et al. (1996) Neutral pion photoproduction from the proton near threshold. Physics Letters B, 368(1-2), pp. 20-25.

MacCormick, M. et al. (1996) Total photoabsorption cross sections for H-1, H-2, and He-3 from 200 to 800 MeV. Physical Review C, 53(1), pp. 41-49. (doi: 10.1103/PhysRevC.53.41)

1995

Cross, G.E. et al. (1995) Proton photoproduction from ¹²C. Nuclear Physics A, 593(4), pp. 463-487. (doi: 10.1016/0375-9474(95)00318-U)

Krusche, B. et al. (1995) Photoproduction of eta-mesons near-threshold - Reply. Physical Review Letters, 75(16), p. 3023. (doi: 10.1103/PhysRevLett.75.3023)

Krusche, B. et al. (1995) Near threshold photoproduction of η mesons off the proton. Physical Review Letters, 74(19), Art. 3736. (doi: 10.1103/PhysRevLett.74.3736)

Harty, P.D. et al. (1995) ¹²C(γ,p)¹¹B cross section from 80 to 157 MeV. Physical Review C, 51(4), pp. 1982-1990. (doi: 10.1103/PhysRevC.51.1982)

McGeorge, J.C. et al. (1995) (γ,2N) reaction in ¹²C. Physical Review C, 51(4), pp. 1967-1976. (doi: 10.1103/PhysRevC.51.1967)

MacGregor, I.J.D. (1995) Probing NN correlations with real photons. In: Conference on Perspectives in Nuclear Physics at Intermediate Energies, Trieste, Italy, 8-12 May 1995, pp. 270-285.

Miller, G.J. et al. (1995) The O-16(gamma,p) reaction at E-gamma=60 and 72-MeV. Nuclear Physics A, 586(1), pp. 125-139. (doi: 10.1016/0375-9474(94)00535-U)

1993

Schmieden, H. et al. (1993) Scaling of the 4He(γ,p)t reaction in the Eγ = 80–160 MeV region. Physics Letters B, 314(304), pp. 284-288. (doi: 10.1016/0370-2693(93)91237-H)

Doran, S.M. et al. (1993) The 4He(gamma,2N) reaction measured with tagged photons. Nuclear Physics A, 559(3), pp. 347-367. (doi: 10.1016/0375-9474(93)90158-T)

Harty, P.D., MacGregor, I.J.D. , McGeorge, J.C., Dancer, S.N. and Owens, R.O. (1993) Neutron propagation in 12C for energies 20 to 45 MeV. Physical Review C, 47(5), pp. 2185-2189. (doi: 10.1103/PhysRevC.47.2185)

Grabmayr, P. et al. (1993) Photoabsorption and correlated nucleon pairs. In: 8th Miniconference on Correlations in Hadronic Systems, Amsterdam, The Netherlands, 9-10 Dec 1993, pp. 1-6.

Grabmayr, P. et al. (1993) Kinematically complete studies of the 6Li(gamma,np) reaction. In: 13th International Conference on Particles and Nuclei, Perugia, Italy, 28 Jun - 2 Jul 1993, pp. 388-389.

Krusche, B. et al. (1993) Study of N* resonances by eta photoproduction. In: 13th International Conference on Particles and Nuclei, Perugia, Italy, 28 Jun - 2 Jul 1993, p. 408.

MacGregor, I.J.D. (1993) Photon absorption on nucleon pairs. In: International Conference on Nuclear and Particle Physics, Glasgow, UK, 30 Mar - 1 Apr 1993, pp. 93-111.

MacGregor, I.J.D. and Doyle, A.T. (1993) Nuclear and Particle Physics, 1993: Proceedings of the International Conference on Nuclear and Particle Physics Held at University of Glasgow, 30 March-1 April 1993. Series: Institute of physics conference series. Institute of Physics Publishing: Bristol. ISBN 9780750302890

McGeorge, J.C. et al. (1993) The (gamma,pn) and (gamma,pp) reactions in 12C. In: 13th International Conference on Particles and Nuclei, Perugia, Italy, 28 Jun - 2 Jul 1993, pp. 418-419.

1992

MacGregor, I.J.D. and Johnston, A. (1992) Study of the M1 isovector strength in 28Si. Journal of Physics G: Nuclear and Particle Physics, 18(7), pp. 1195-1206. (doi: 10.1088/0954-3899/18/7/009)

Audit, G. et al. (1992) The DAPHNE project at Mainz MAMI-B. In: Seventh Course and the Second Winter Course of the International School of Intermediate Energy Nuclear Physics, L'Aquila, Italy, 16-26 Jul 1990, pp. 500-502.

Terzoudi, P. et al. (1992) Study of the (gamma,pi n) reaction on complex nuclei in the Delta-resonance region. In: International Conference on New Nuclear Physics With Advanced Techniques, Ierapetra, Greece, 23-29 Jun 1991, pp. 62-70.

1991

MacGregor, I.J.D. et al. (1991) The 16O(γ, 2N) reaction measured with tagged photons. Nuclear Physics A, 533(2), pp. 269-291. (doi: 10.1016/0375-9474(91)90490-W)

Wallace, P.A. et al. (1991) Differential cross section for the reaction 2H(γ, p)n from 133 to 158 MeV. Nuclear Physics A, 532(3-4), pp. 617-633. (doi: 10.1016/0375-9474(91)90600-B)

MacGregor, I.J.D. (1991) PIP: a large solid angle detector for protons and pions. In: Workshop on Future Detectors for Photonuclear Experiments, Edinburgh, UK, 27-28 May 1991, pp. 232-241.

1990

So, K.C. et al. (1990) Spin-isospin excitation in 12C(γ, π+)12B∗ using tagged photons. Nuclear Physics A, 517(3-4), pp. 473-482. (doi: 10.1016/0375-9474(90)90212-5)

1989

Gothe, R.W. et al. (1989) Detection of low energy pions at a tagged photon beam. Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 276(1-2), pp. 233-236. (doi: 10.1016/0168-9002(89)90638-4)

1988

Dancer, S.N. et al. (1988) Investigation of the C12(γ,pn) reaction using tagged photons. Physical Review Letters, 61(10), pp. 1170-1173. (doi: 10.1103/PhysRevLett.61.1170)

Annand, J. et al. (1988) Deuteron photodisintegration cross-sections 50-155 MeV. In: Drechsel, D. and Walcher, T. (eds.) Physics with MAMI-A. Institut fuer Kernphysik, Johannes Gutenberg Universitaet Mainz: Mainz, Germany, pp. 60-66.

Dancer, S.N. et al. (1988) (gamma,np) reactions in ¹²C , ⁶Li and ^3,4He. In: Drechsel, D. and Walcher, T. (eds.) Physics with MAMI-A. Institut fuer Kernphysik, Johannes Gutenberg Universitaet Mainz: Mainz, Germany, pp. 46-59.

Kellie, J.D., Anthony, I., Hall, S.J., MacGregor, I.J.D. , McPherson, A., Thorley, P.J. and Zettl, F. (1988) Glasgow, Edinburgh, Mainz (GEM) Tagging System. In: Drechsel, D. and Walcher, T. (eds.) Physics with MAMI-A. Institut fuer Kernphysik, Johannes Gutenberg Universitaet Mainz: Mainz, Germany, pp. 42-45.

Min, K. et al. (1988) Excitation of spin-isospin giant resonance states in 12c(gamma,pi+)12b using tagged photons. In: Drechsel, D. and Walcher, T. (eds.) Physics with MAMI-A. Institut fuer Kernphysik, Johannes Gutenberg Universitaet Mainz: Mainz, Germany, pp. 151-153.

Vogt, J. et al. (1988) 6Li(γ,np)alpha for 80 MeV < Eγ < 160 MeV. In: 3rd Workshop on Perspectives in Nuclear Physics at Intermediate Energies, Trieste, Italy, 18-22 May 1987, pp. 633-641.

1987

MacGregor, I.J.D. et al. (1987) A large solid angle detector for medium energy charged particles. Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 262(2-3), pp. 347-352. (doi: 10.1016/0168-9002(87)90872-2)

Anthony, I. et al. (1987) Tagged photon measurements of correlated neutron-proton pairs from the 12C(gamma,pn) reaction. In: 5th Miniconference on Non-Nucleonic Degrees of Freedom in Intermediate Energy Electron-Nucleus Scattering, Amsterdam, Nov 1987, pp. 215-216.

Min, K. et al. (1987) Excitation of spin-isospin analog states in 12C(gamma,pi+)12B using tagged photons. In: Spring Meeting of the American Physical Society, 1987, p. 1118.

Min, K. et al. (1987) Excitation of spin-isospin giant resonance states in 12C(gamma,pi+)12B using tagged photons. In: PANIC '87: XI International Conference on Particles and Nuclei, Kyoto, Japan, 20-24 Apr 1987, p. 1118.

1986

Annand, J.R.M. et al. (1986) The reaction D(γp)n at intermediate energies. In: International Nuclear Physics Conference, Harrogate, UK, 25-30 Aug 1986, p. 16.

Anthony, I. et al. (1986) Tagged photon measurements of correlated neutron-proton pairs from the 12C(gamma,np) reaction. In: International Nuclear Physics Conference, Harrogate, UK, 25-30 Aug 1986, p. 335.

1985

Anthony, I. et al. (1985) A tagged photon spectrometer for the mainz 180 MeV microtron. In: 11th Europhysics Divisional Conference on Nuclear Physics with Electromagnetic Probes, Paris, France, 1-5 Jul 1985, p. 321.

Kellie, J.D., Anthony, I., Hall, S.J., MacGregor, I.J.D. , McPherson, A., Thorley, P.J., Wan, S.L. and Zettl, F. (1985) A tagged photon spectrometer for use with the Mainz 180 MeV microtron. Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 241(1), pp. 153-168. (doi: 10.1016/0168-9002(85)90526-1)

1984

MacGregor, I.J.D. , Johnson, A. and Ewing, J.S. (1984) Electron scattering measurements of inelastic M3 transitions. Nuclear Physics A, 412(1), pp. 1-12. (doi: 10.1016/0375-9474(84)90382-8)

MacGregor, I.J.D. , Grant, I.S. and Walker, P.M. (1984) Current status of the Daresbury isotope separator. Vacuum, 34(1-2), pp. 3-6. (doi: 10.1016/0042-207X(84)90097-6)

Articles

Skorodumina, I. A. et al. (2024) Double-pion electroproduction off protons in deuterium: quasifree cross sections and final-state interactions. Physical Review C, 109(6), 065205. (doi: 10.1103/PhysRevC.109.065205)

Mornacchi, E. et al. (2024) Evaluation of the E2/M1 ratio in the N→Δ(1232) transition from transition from the γ⃗p → pπ0 reaction. Physical Review C, 109(5), 0055201. (doi: 10.1103/PhysRevC.109.055201)

Afzal, F. et al. (2024) First measurement using elliptically polarized photons of the double-polarization observable E for γp→pπ0 and γp→nπ+. Physical Review Letters, 132(12), 121902. (doi: 10.1103/PhysRevLett.132.121902) (PMID:38579200)

Dalal, R. and MacGregor, I. J. D. (2024) Nucleon-nucleon correlations inside atomic nuclei: synergies, observations and theoretical models. Reports on Progress in Physics, 87(3), 034301. (doi: 10.1088/1361-6633/ad27dd)

Kim, A. et al. (2024) Beam spin asymmetry measurements of deeply virtual π0 production with CLAS12. Physics Letters B, 849, 138459. (doi: 10.1016/j.physletb.2024.138459)

Bashkanov, M. et al. (2023) Neutron polarisation transfer, Cx′, in π+ photoproduction off the proton, d(γ⊙,n→π+)nspec. Physics Letters B, 847, 138283. (doi: 10.1016/j.physletb.2023.138283)

Ghosal, D. et al. (2023) Helicity dependent cross sections for the photoproduction of π0π± pairs from quasi-free nucleons. Physics Letters B, 847, 138273. (doi: 10.1016/j.physletb.2023.138273)

Kim, C. W. et al. (2023) Measurement of the helicity asymmetry E for the γ p → pπ0 reaction in the resonance region. European Physical Journal A, 59(9), 217. (doi: 10.1140/epja/s10050-023-01123-3)

Bashkanov, M. et al. (2023) First measurement of polarisation transfer Cx′n in deuteron photodisintegration. Physics Letters B, 844, 138080. (doi: 10.1016/j.physletb.2023.138080)

Diehl, S. et al. (2023) First measurement of hard exclusive π−Δ++ electroproduction beam-spin asymmetries off the proton. Physical Review Letters, 131(2), 021901. (doi: 10.1103/PhysRevLett.131.021901) (PMID:37505937)

Korover, I. et al. (2023) Observation of large missing-momentum (e,e′p) cross-section scaling and the onset of correlated-pair dominance in nuclei. Physical Review C, 107(6), L061301. (doi: 10.1103/PhysRevC.107.L061301)

Christiaens, G. et al. (2023) First CLAS12 measurement of deeply virtual Compton scattering beam-spin asymmetries in the extended valence region. Physical Review Letters, 130(21), 211902. (doi: 10.1103/PhysRevLett.130.211902)

Diehl, S. et al. (2023) A multidimensional study of the structure function ratio σLT′/σ0 from hard exclusive π+ electro-production off protons in the GPD regime. Physics Letters B, 839, 137761. (doi: 10.1016/j.physletb.2023.137761)

Chetry, T. et al. (2023) First measurement of Λ electroproduction off nuclei in the current and target fragmentation regions. Physical Review Letters, 130(14), 142301. (doi: 10.1103/PhysRevLett.130.142301)

Paul, S.J. et al. (2023) Alignment of the CLAS12 central hybrid tracker with a Kalman Filter. Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 1049, 168032. (doi: 10.1016/j.nima.2023.168032)

Avakian, H. et al. (2023) Observation of correlations between spin and transverse momenta in back-to-back dihadron production at CLAS12. Physical Review Letters, 130(2), 022501. (doi: 10.1103/PhysRevLett.130.022501)

Tian, Y. et al. (2023) Exclusive π− electroproduction off the neutron in deuterium in the resonance region. Physical Review C, 107(1), 015201. (doi: 10.1103/PhysRevC.107.015201)

Paul, S. J. et al. (2022) Observation of azimuth-dependent suppression of hadron pairs in electron scattering off nuclei. Physical Review Letters, 129(18), 182501. (doi: 10.1103/PhysRevLett.129.182501)

Carman, D. S. et al. (2022) Beam-recoil transferred polarization in K+Y electroproduction in the nucleon resonance region with CLAS12. Physical Review C, 105(6), 065201. (doi: 10.1103/PhysRevC.105.065201)

Cividini, F. et al. (2022) Measurement of the helicity dependence for single π0 photoproduction from the deuteron. European Physical Journal A, 58(6), 113. (doi: 10.1140/epja/s10050-022-00760-4)

Zachariou, N. et al. (2022) Beam-spin asymmetry Σ for Σ− hyperon photoproduction off the neutron. Physics Letters B, 827, 136985. (doi: 10.1016/j.physletb.2022.136985)

Mornacchi, E. et al. (2022) Measurement of Compton scattering at MAMI for the extraction of the electric and magnetic polarizabilities of the proton. Physical Review Letters, 128(13), 132503. (doi: 10.1103/PhysRevLett.128.132503)

Isupov, E. L. et al. (2022) Polarized structure function σLT′ from π0p electroproduction data in the resonance region at 0.4GeV2<Q2<1.0GeV2. Physical Review C, 105(2), L022201. (doi: 10.1103/PhysRevC.105.L022201)

Diehl, S. et al. (2022) Multidimensional, high precision measurements of beam single spin asymmetries in semi-inclusive π+ electroproduction off protons in the valence region. Physical Review Letters, 128(6), 062005. (doi: 10.1103/PhysRevLett.128.062005)

Morán, S. et al. (2022) Measurement of charged-pion production in deep-inelastic scattering off nuclei with the CLAS detector. Physical Review C, 105(1), 015201. (doi: 10.1103/PhysRevC.105.015201)

Rowley, J. et al. (2021) Improved Λp elastic scattering cross sections between 0.9 and 2.0 GeV/c as a main ingredient of the neutron star equation of state. Physical Review Letters, 127(27), 272303. (doi: 10.1103/PhysRevLett.127.272303)

Chatagnon, P. et al. (2021) First measurement of timelike Compton scattering. Physical Review Letters, 127(26), 262501. (doi: 10.1103/PhysRevLett.127.262501)

Khachatryan, M. et al. (2021) Electron-beam energy reconstruction for neutrino oscillation measurements. Nature, 599(7886), pp. 565-570. (doi: 10.1038/s41586-021-04046-5) (PMID:34819691)

Korover, I. et al. (2021) 12C(e,e'pN) measurements of short range correlations in the tensor-to-scalar interaction transition region. Physics Letters B, 820, 136523. (doi: 10.1016/j.physletb.2021.136523)

Dupré, R. et al. (2021) Measurement of deeply virtual Compton scattering off He4 with the CEBAF Large Acceptance Spectrometer at Jefferson Lab. Physical Review C, 104(2), 025203. (doi: 10.1103/PhysRevC.104.025203)

Zachariou, N. et al. (2021) Double polarisation observable G for single pion photoproduction from the proton. Physics Letters B, 817, 136304. (doi: 10.1016/j.physletb.2021.136304)

Mullen, C. et al. (2021) Single π0 production off neutrons bound in deuteron with linearly polarized photons. European Physical Journal A, 57(6), 205. (doi: 10.1140/epja/s10050-021-00521-9)

Hayward, T. B. et al. (2021) Observation of beam spin asymmetries in the process ep→e^{'}π^{+}π^{-}X with CLAS12. Physical Review Letters, 126(15), 152501. (doi: 10.1103/PhysRevLett.126.152501)

Zheng, X. et al. (2021) Measurement of the proton spin structure at long distances. Nature Physics, 17(6), pp. 736-741. (doi: 10.1038/s41567-021-01198-z)

Carver, M. et al. (2021) Photoproduction of the f_{2}(1270) meson using the CLAS detector. Physical Review Letters, 126(8), 082002. (doi: 10.1103/PhysRevLett.126.082002)

Shrestha, U. et al. (2021) Differential cross sections for Λ(1520) using photoproduction at CLAS. Physical Review C, 103(2), 025206. (doi: 10.1103/PhysRevC.103.025206)

Mirazita, M. et al. (2021) Beam spin asymmetry in semi-inclusive electroproduction of hadron pairs. Physical Review Letters, 126(6), 062002. (doi: 10.1103/PhysRevLett.126.062002)

Hu, T. et al. (2020) Photoproduction of η mesons off the proton for 1.2<Eγ<4.7GeV using CLAS at Jefferson Laboratory. Physical Review C, 102(6), 065203. (doi: 10.1103/PhysRevC.102.065203)

Diehl, S. et al. (2020) Extraction of beam-spin asymmetries from the hard exclusive π+ channel off protons in a wide range of kinematics. Physical Review Letters, 125(18), 182001. (doi: 10.1103/PhysRevLett.125.182001)

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Kellie, J.D., Anthony, I., Hall, S.J., MacGregor, I.J.D. , McPherson, A., Thorley, P.J., Wan, S.L. and Zettl, F. (1985) A tagged photon spectrometer for use with the Mainz 180 MeV microtron. Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 241(1), pp. 153-168. (doi: 10.1016/0168-9002(85)90526-1)

MacGregor, I.J.D. , Johnson, A. and Ewing, J.S. (1984) Electron scattering measurements of inelastic M3 transitions. Nuclear Physics A, 412(1), pp. 1-12. (doi: 10.1016/0375-9474(84)90382-8)

MacGregor, I.J.D. , Grant, I.S. and Walker, P.M. (1984) Current status of the Daresbury isotope separator. Vacuum, 34(1-2), pp. 3-6. (doi: 10.1016/0042-207X(84)90097-6)

Books

Macková, A., MacGregor, D. , Azaiez, F., Nyberg, J. and Piasetzky, E. eds. (2016) Nuclear Physics for Cultural Heritage. Nuclear Physics Division of the European Physical Society. ISBN 9782759820917

Book Sections

Laing, M. et al. (1997) Exclusive charged pion photo-production in 12C. In: Li, L.F., Phua, K.K., Wong, S.S.M. and Young, B.L. (eds.) Looking to the 21st Century: Proceedings of the First International Conference on Frontiers of Physics : Joint Meeting of the Chinese Physical Societies Shantou, China 5-9 August. World Scientific, pp. 646-651.

Annand, J. et al. (1988) Deuteron photodisintegration cross-sections 50-155 MeV. In: Drechsel, D. and Walcher, T. (eds.) Physics with MAMI-A. Institut fuer Kernphysik, Johannes Gutenberg Universitaet Mainz: Mainz, Germany, pp. 60-66.

Dancer, S.N. et al. (1988) (gamma,np) reactions in ¹²C , ⁶Li and ^3,4He. In: Drechsel, D. and Walcher, T. (eds.) Physics with MAMI-A. Institut fuer Kernphysik, Johannes Gutenberg Universitaet Mainz: Mainz, Germany, pp. 46-59.

Kellie, J.D., Anthony, I., Hall, S.J., MacGregor, I.J.D. , McPherson, A., Thorley, P.J. and Zettl, F. (1988) Glasgow, Edinburgh, Mainz (GEM) Tagging System. In: Drechsel, D. and Walcher, T. (eds.) Physics with MAMI-A. Institut fuer Kernphysik, Johannes Gutenberg Universitaet Mainz: Mainz, Germany, pp. 42-45.

Min, K. et al. (1988) Excitation of spin-isospin giant resonance states in 12c(gamma,pi+)12b using tagged photons. In: Drechsel, D. and Walcher, T. (eds.) Physics with MAMI-A. Institut fuer Kernphysik, Johannes Gutenberg Universitaet Mainz: Mainz, Germany, pp. 151-153.

Edited Books

Freeman, S., Andreyev, A., Bruce, A., Deacon, A., Jenkins, D., Joss, D., MacGregor, D. , Regan, P., Simpson, J., Tungate, G., Wadsworth, B. and Watts, D. (Eds.) (2012) Rutherford Centennial Conference on Nuclear Physics 8–12 August 2011, Manchester, UK. Series: Journal of Physics Conference Series. Institute of Physics.

MacGregor, I.J.D. and Kaiser, R. (Eds.) (2006) Hadron Physics. Series: Scottish graduate series. Taylor and Francis: New York, NY. ISBN 9781584887058

MacGregor, I.J.D. and Doyle, A.T. (1993) Nuclear and Particle Physics, 1993: Proceedings of the International Conference on Nuclear and Particle Physics Held at University of Glasgow, 30 March-1 April 1993. Series: Institute of physics conference series. Institute of Physics Publishing: Bristol. ISBN 9780750302890

Research Reports or Papers

Erni, W. et al. (2012) Technical Design Report for the PANDA Micro Vertex Detector. Technical Report. FAIR, Darmstadt.

Bracco, A., Chomaz, P., Gaardhøje, J.J., Makarow, M., Heenen, P.-H., Rosner, G., Kaiser, R. , MacGregor, D. , Widmann, E. and Korner, G.E. (2010) Perspectives of Nuclear Physics in Europe: NuPECC Long Range Plan 2010. Discussion Paper. European Science Foundation.

Erni, W. et al. (2009) Physics Performance Report for PANDA Strong Interaction Studies with Antiprotons. Project Report. FAIR, Darmstadt.

Erni, W. et al. (2009) Technical Design Report for the PANDA Solenoid and Dipole Spectrometer Magnets. Technical Report. FAIR, Darmstadt.

Erni, W. et al. (2008) Technical Design Report for PANDA Electromagnetic Calorimeter (EMC). Technical Report. FAIR, Darmstadt.

Annand, J.R.M. et al. (1997) Population of states in 15O following the 16O(γ,n) reaction. Project Report. University of Lund. (Unpublished)

Conference Proceedings

MacGregor, I.J.D. (2013) IBA-Europhysics prize in applied nuclear science and nuclear methods in medicine. In: INPC 2013 International Nuclear Physics Conference, Florence, Italy, 2-7 Jun 2013,

Mancell, J. and MacGregor, I.J.D. (2012) Eta photoproduction on the proton. In: Rutherford Centennial Conference on Nuclear Physics, Manchester, UK, 8-12 Aug 2011, pp. 1-5. (doi: 10.1088/1742-6596/381/1/012024)

MacGregor, I.J.D. (2004) Photoinduced two-nucleon emission in near super-parallel kinematics. In: 6th International Workshop on Electromagnetically Induced 2-Hadron Emission, Pavia, Italy, 24-27 Sept 2003, pp. 129-141.

MacGregor, I.J.D. (2001) Two-nucleon emission with polarised photons. In: 5th International Workshop on Electromagnetically Induced 2-Hadron Emission, Lund, Sweden, 13-16 Jun 2001, pp. 314-324.

Boland, M.J. et al. (2001) A new state in 6He following the 7Li(γ,p)6He reaction. In: 5th International Workshop on Electromagnetically Induced 2-Hadron Emission, Lund, Sweden, 13-16 Jun 2001, pp. 264-268.

MacGregor, I.J.D. (1999) Recent γNN Results and Future Plans. In: 4th International Workshop on Electromagnetically Induced 2-Hadron Emission, Granada, Spain, 26-29 May 1999, pp. 339-352.

Grabmayr, P. et al. (1997) Mechanisms of the 12C(gamma,NN) reactions at Egamma = 114 - 600 MeV. In: 14th International Conference on Particles and Nuclei, Williamsburg, VA, USA, 22 -28 May 1996, pp. 296-297.

Liang, M. et al. (1997) Quasifree pion photo-production and FSI in the nuclear medium at delta-resonance energies. In: 14th International Conference on Particles and Nuclei, Williamsburg, VA, USA, 22 -28 May 1996, pp. 298-300.

MacGregor, I.J.D. (1995) Probing NN correlations with real photons. In: Conference on Perspectives in Nuclear Physics at Intermediate Energies, Trieste, Italy, 8-12 May 1995, pp. 270-285.

Grabmayr, P. et al. (1993) Photoabsorption and correlated nucleon pairs. In: 8th Miniconference on Correlations in Hadronic Systems, Amsterdam, The Netherlands, 9-10 Dec 1993, pp. 1-6.

Grabmayr, P. et al. (1993) Kinematically complete studies of the 6Li(gamma,np) reaction. In: 13th International Conference on Particles and Nuclei, Perugia, Italy, 28 Jun - 2 Jul 1993, pp. 388-389.

Krusche, B. et al. (1993) Study of N* resonances by eta photoproduction. In: 13th International Conference on Particles and Nuclei, Perugia, Italy, 28 Jun - 2 Jul 1993, p. 408.

MacGregor, I.J.D. (1993) Photon absorption on nucleon pairs. In: International Conference on Nuclear and Particle Physics, Glasgow, UK, 30 Mar - 1 Apr 1993, pp. 93-111.

McGeorge, J.C. et al. (1993) The (gamma,pn) and (gamma,pp) reactions in 12C. In: 13th International Conference on Particles and Nuclei, Perugia, Italy, 28 Jun - 2 Jul 1993, pp. 418-419.

Audit, G. et al. (1992) The DAPHNE project at Mainz MAMI-B. In: Seventh Course and the Second Winter Course of the International School of Intermediate Energy Nuclear Physics, L'Aquila, Italy, 16-26 Jul 1990, pp. 500-502.

Terzoudi, P. et al. (1992) Study of the (gamma,pi n) reaction on complex nuclei in the Delta-resonance region. In: International Conference on New Nuclear Physics With Advanced Techniques, Ierapetra, Greece, 23-29 Jun 1991, pp. 62-70.

MacGregor, I.J.D. (1991) PIP: a large solid angle detector for protons and pions. In: Workshop on Future Detectors for Photonuclear Experiments, Edinburgh, UK, 27-28 May 1991, pp. 232-241.

Vogt, J. et al. (1988) 6Li(γ,np)alpha for 80 MeV < Eγ < 160 MeV. In: 3rd Workshop on Perspectives in Nuclear Physics at Intermediate Energies, Trieste, Italy, 18-22 May 1987, pp. 633-641.

Anthony, I. et al. (1987) Tagged photon measurements of correlated neutron-proton pairs from the 12C(gamma,pn) reaction. In: 5th Miniconference on Non-Nucleonic Degrees of Freedom in Intermediate Energy Electron-Nucleus Scattering, Amsterdam, Nov 1987, pp. 215-216.

Min, K. et al. (1987) Excitation of spin-isospin analog states in 12C(gamma,pi+)12B using tagged photons. In: Spring Meeting of the American Physical Society, 1987, p. 1118.

Min, K. et al. (1987) Excitation of spin-isospin giant resonance states in 12C(gamma,pi+)12B using tagged photons. In: PANIC '87: XI International Conference on Particles and Nuclei, Kyoto, Japan, 20-24 Apr 1987, p. 1118.

Annand, J.R.M. et al. (1986) The reaction D(γp)n at intermediate energies. In: International Nuclear Physics Conference, Harrogate, UK, 25-30 Aug 1986, p. 16.

Anthony, I. et al. (1986) Tagged photon measurements of correlated neutron-proton pairs from the 12C(gamma,np) reaction. In: International Nuclear Physics Conference, Harrogate, UK, 25-30 Aug 1986, p. 335.

Anthony, I. et al. (1985) A tagged photon spectrometer for the mainz 180 MeV microtron. In: 11th Europhysics Divisional Conference on Nuclear Physics with Electromagnetic Probes, Paris, France, 1-5 Jul 1985, p. 321.

Key Findings

Oberle, M. et al. (2013) Measurement of the beam-helicity asymmetry I^⊙ in the photoproduction of π⁰-pairs off the proton and off the neutron. [Key Findings]