Professor Colin Froggatt
- Honorary Senior Research Fellow (School of Physics & Astronomy)
email:
Colin.Froggatt@glasgow.ac.uk
R520 Level 5, Physics and Astronomy, Kelvin Building
Publications
2019
Froggatt, C., Nielsen, H., Nevzorov, R. and Thomas, A. (2019) Cosmological constant in SUGRA models with degenerate vacua. Universe, 5(10), e214. (doi: 10.3390/universe5100214)
2018
Froggatt, C.D., Nielsen, H.B., Nevzorov, R. and Thomas, A.W. (2018) Dark energy xensity in SUGRA models and degenerate vacua. In: Fritzsch, H. (ed.) Cosmology, Gravitational Waves and Particles. World Scientific, pp. 61-75. ISBN 9789813231795 (doi: 10.1142/9789813231801_0007)
2017
Froggatt, C.D., Nielsen, H.B., Nevzorov, R. and Thomas, A.W. (2017) Dark energy density in SUGRA models and degenerate vacua. International Journal of Modern Physics A, 32(17), 1730013. (doi: 10.1142/s0217751x17300137)
2014
Froggatt, C.D., Nevzorov, R., Nielsen, H.B. and Thomas, A.W. (2014) Cosmological constant in SUGRA models with Planck scale SUSY breaking and degenerate vacua. Physics Letters B, 737, pp. 167-171. (doi: 10.1016/j.physletb.2014.08.027)
2009
Froggatt, C. and Nielsen, H. (2009) Remarkable coincidence for the top Yukawa coupling and an approximately massless bound state. Physical Review D, 80(3), (doi: 10.1103/PhysRevD.80.034033)
Froggatt, C.D., Nevzorov, R., Nielsen, H.B. and Thompson, D. (2009) On the origin of approximate custodial symmetry in the two-higgs doublet model. International Journal of Modern Physics A, 24(30), pp. 5587-5637. (doi: 10.1142/S0217751X09047442)
Soler, F.J.P., Froggatt, C.D. and Muheim, F. eds. (2009) Neutrinos in Particle Physics, Astrophysics and Cosmology. Series: Scottish graduate series. CRC Press: Boca Raton. ISBN 9781420082395
2008
Chkareuli, J.L., Froggatt, C.D., Jejelava, J.G. and Nielsen, H.B. (2008) Constrained gauge fields from spontaneous Lorentz violation. Nuclear Physics B, 796(1-2), pp. 211-223. (doi: 10.1016/j.nuclphysb.2007.12.006)
2006
Das, C., Froggatt, C., Laperashvili, L. and Nielsen, H. (2006) Flipped SU(5), seesaw scale physics and degenerate vacua. Modern Physics Letters A, 21, pp. 1151-1160.
Froggatt, C., Nevzorov, R. and Nielsen, H. (2006) On the smallness of the cosmological constant in SUGRA models. Nuclear Physics B, 743, pp. 133-152. (doi: 10.1016/j.nuclphysb.2006.03.008)
Froggatt, C., Laperashvili, L.V. and Nielsen, H.B. (2006) The fundamental-electroweak scale hierarchy in the standard model. Physics of Atomic Nuclei, 69(1), pp. 67-80. (doi: 10.1134/S1063778806010108)
Froggatt, C., Laperashvili, L., Nevzorov, R., Nielsen, H. and Sher, M. (2006) Implementation of the multiple point principle in the two-Higgs doublet model of type II. Physical Review D, 73, (doi: 10.1103/PhysRevD.73.095005)
2005
Froggatt, C.D. and Nielsen, H.B. (2005) Derivation of Poincare invariance from general quantum field theory. Annalen der Physik, 14, pp. 115-147. (doi: 10.1002/andp.200410134)
Froggatt, C. and Nielsen, H. (2005) Cryptobaryonic dark matter. Physical Review Letters, 95, (doi: 10.1103/PhysRevLett.95.231601)
Froggatt, C., Nielsen, H. and Laperashvili, L. (2005) Hierarchy-problem and a bound state of 6t and 6(t)over-bar. International Journal of Modern Physics A, 20, pp. 1268-1275.
2004
Froggatt, C., Laperashvili, L.V., Nevzorov, R.B. and Nielsen, H.B. (2004) Cosmological constant in SUGRA models and the multiple-point principle. Physics of Atomic Nuclei, 67(3), pp. 582-589. (doi: 10.1134/1.1690068)
2003
Dubicki, J.E. and Froggatt, C.D. (2003) Supersymmetric grand unification with a fourth generation? Physics Letters B, 567(1-2), 46 -52. (doi: 10.1016/j.physletb.2003.06.017)
2002
Froggatt, C.D., Nielsen, H.B. and Takanishi, Y. (2002) Family replicated gauge groups and large mixing angle solar neutrino solution. Nuclear Physics B, B631(1-2), 285 -306. (doi: 10.1016/S0550-3213(02)00212-2)
Froggatt, C.D., Nielsen, H.B. and Smith, D.J. (2002) Quantum numbers of anti-grand-unified-theory Higgs fields from the quark-lepton spectrum. Physical Review D, 65(9), p. 95007. (doi: 10.1103/PhysRevD.65.095007)
Chkareuli, J.L., Froggatt, C.D. and Nielsen, H.B. (2002) Minimal mixing of quarks and leptons in the SU(3) theory of flavour. Nuclear Physics B, 626(1-2), 307 -343. (doi: 10.1016/S0550-3213(02)00032-9)
2001
Froggatt, C.D., Nielsen, H.B. and Takanishi, Y. (2001) Standard model Higgs boson mass from borderline metastability of the vacuum. Physical Review D, 64(11), p. 113014. (doi: 10.1103/PhysRevD.64.113014)
Chkareuli, J.L., Froggatt, C.D. and Nielsen, H.B. (2001) Spontaneously generated gauge invariance. Nuclear Physics B, 609(1-2), 46 -60. (doi: 10.1016/S0550-3213(01)00283-8)
Chkareuli, J.L., Froggatt, C.D., Gogoladze, I.G. and Kobakhidze, A.B. (2001) From prototype SU(5) to realistic SU(7) SUSY GUT. Nuclear Physics B, 594(1-2), 23 -45. (doi: 10.1016/S0550-3213(00)00660-X)
Chkareuli, J.L., Froggatt, C.D. and Nielsen, H.B. (2001) Lorentz invariance and origin of symmetries. Physical Review Letters, 87(9), 916011 -916014. (doi: 10.1103/PhysRevLett.87.091601)
2000
Chkareuli, J.L. and Froggatt, C.D. (2000) Lepton number violation in supersymmetric grand unified theories. Physics Letters B, 484(1-2), 87 -97. (doi: 10.1016/S0370-2693(00)00628-6)
Froggatt, C.D., Nielsen, H.B. and Takanishi, Y. (2000) Neutrino oscillations in extended Anti-GUT model. In: 2nd Tropical workshop - Particle physics and cosmology, San Juan, PR, May 2000, 35 -74. ISBN 1563969653 (doi: 10.1063/1.1328879)
Articles
Froggatt, C., Nielsen, H., Nevzorov, R. and Thomas, A. (2019) Cosmological constant in SUGRA models with degenerate vacua. Universe, 5(10), e214. (doi: 10.3390/universe5100214)
Froggatt, C.D., Nielsen, H.B., Nevzorov, R. and Thomas, A.W. (2017) Dark energy density in SUGRA models and degenerate vacua. International Journal of Modern Physics A, 32(17), 1730013. (doi: 10.1142/s0217751x17300137)
Froggatt, C.D., Nevzorov, R., Nielsen, H.B. and Thomas, A.W. (2014) Cosmological constant in SUGRA models with Planck scale SUSY breaking and degenerate vacua. Physics Letters B, 737, pp. 167-171. (doi: 10.1016/j.physletb.2014.08.027)
Froggatt, C. and Nielsen, H. (2009) Remarkable coincidence for the top Yukawa coupling and an approximately massless bound state. Physical Review D, 80(3), (doi: 10.1103/PhysRevD.80.034033)
Froggatt, C.D., Nevzorov, R., Nielsen, H.B. and Thompson, D. (2009) On the origin of approximate custodial symmetry in the two-higgs doublet model. International Journal of Modern Physics A, 24(30), pp. 5587-5637. (doi: 10.1142/S0217751X09047442)
Chkareuli, J.L., Froggatt, C.D., Jejelava, J.G. and Nielsen, H.B. (2008) Constrained gauge fields from spontaneous Lorentz violation. Nuclear Physics B, 796(1-2), pp. 211-223. (doi: 10.1016/j.nuclphysb.2007.12.006)
Das, C., Froggatt, C., Laperashvili, L. and Nielsen, H. (2006) Flipped SU(5), seesaw scale physics and degenerate vacua. Modern Physics Letters A, 21, pp. 1151-1160.
Froggatt, C., Nevzorov, R. and Nielsen, H. (2006) On the smallness of the cosmological constant in SUGRA models. Nuclear Physics B, 743, pp. 133-152. (doi: 10.1016/j.nuclphysb.2006.03.008)
Froggatt, C., Laperashvili, L.V. and Nielsen, H.B. (2006) The fundamental-electroweak scale hierarchy in the standard model. Physics of Atomic Nuclei, 69(1), pp. 67-80. (doi: 10.1134/S1063778806010108)
Froggatt, C., Laperashvili, L., Nevzorov, R., Nielsen, H. and Sher, M. (2006) Implementation of the multiple point principle in the two-Higgs doublet model of type II. Physical Review D, 73, (doi: 10.1103/PhysRevD.73.095005)
Froggatt, C.D. and Nielsen, H.B. (2005) Derivation of Poincare invariance from general quantum field theory. Annalen der Physik, 14, pp. 115-147. (doi: 10.1002/andp.200410134)
Froggatt, C. and Nielsen, H. (2005) Cryptobaryonic dark matter. Physical Review Letters, 95, (doi: 10.1103/PhysRevLett.95.231601)
Froggatt, C., Nielsen, H. and Laperashvili, L. (2005) Hierarchy-problem and a bound state of 6t and 6(t)over-bar. International Journal of Modern Physics A, 20, pp. 1268-1275.
Froggatt, C., Laperashvili, L.V., Nevzorov, R.B. and Nielsen, H.B. (2004) Cosmological constant in SUGRA models and the multiple-point principle. Physics of Atomic Nuclei, 67(3), pp. 582-589. (doi: 10.1134/1.1690068)
Dubicki, J.E. and Froggatt, C.D. (2003) Supersymmetric grand unification with a fourth generation? Physics Letters B, 567(1-2), 46 -52. (doi: 10.1016/j.physletb.2003.06.017)
Froggatt, C.D., Nielsen, H.B. and Takanishi, Y. (2002) Family replicated gauge groups and large mixing angle solar neutrino solution. Nuclear Physics B, B631(1-2), 285 -306. (doi: 10.1016/S0550-3213(02)00212-2)
Froggatt, C.D., Nielsen, H.B. and Smith, D.J. (2002) Quantum numbers of anti-grand-unified-theory Higgs fields from the quark-lepton spectrum. Physical Review D, 65(9), p. 95007. (doi: 10.1103/PhysRevD.65.095007)
Chkareuli, J.L., Froggatt, C.D. and Nielsen, H.B. (2002) Minimal mixing of quarks and leptons in the SU(3) theory of flavour. Nuclear Physics B, 626(1-2), 307 -343. (doi: 10.1016/S0550-3213(02)00032-9)
Froggatt, C.D., Nielsen, H.B. and Takanishi, Y. (2001) Standard model Higgs boson mass from borderline metastability of the vacuum. Physical Review D, 64(11), p. 113014. (doi: 10.1103/PhysRevD.64.113014)
Chkareuli, J.L., Froggatt, C.D. and Nielsen, H.B. (2001) Spontaneously generated gauge invariance. Nuclear Physics B, 609(1-2), 46 -60. (doi: 10.1016/S0550-3213(01)00283-8)
Chkareuli, J.L., Froggatt, C.D., Gogoladze, I.G. and Kobakhidze, A.B. (2001) From prototype SU(5) to realistic SU(7) SUSY GUT. Nuclear Physics B, 594(1-2), 23 -45. (doi: 10.1016/S0550-3213(00)00660-X)
Chkareuli, J.L., Froggatt, C.D. and Nielsen, H.B. (2001) Lorentz invariance and origin of symmetries. Physical Review Letters, 87(9), 916011 -916014. (doi: 10.1103/PhysRevLett.87.091601)
Chkareuli, J.L. and Froggatt, C.D. (2000) Lepton number violation in supersymmetric grand unified theories. Physics Letters B, 484(1-2), 87 -97. (doi: 10.1016/S0370-2693(00)00628-6)
Books
Soler, F.J.P., Froggatt, C.D. and Muheim, F. eds. (2009) Neutrinos in Particle Physics, Astrophysics and Cosmology. Series: Scottish graduate series. CRC Press: Boca Raton. ISBN 9781420082395
Book Sections
Froggatt, C.D., Nielsen, H.B., Nevzorov, R. and Thomas, A.W. (2018) Dark energy xensity in SUGRA models and degenerate vacua. In: Fritzsch, H. (ed.) Cosmology, Gravitational Waves and Particles. World Scientific, pp. 61-75. ISBN 9789813231795 (doi: 10.1142/9789813231801_0007)
Conference Proceedings
Froggatt, C.D., Nielsen, H.B. and Takanishi, Y. (2000) Neutrino oscillations in extended Anti-GUT model. In: 2nd Tropical workshop - Particle physics and cosmology, San Juan, PR, May 2000, 35 -74. ISBN 1563969653 (doi: 10.1063/1.1328879)