235 citations · 1.3k across the 101 of their papers we have counts for
8 papers · 1 filter
Quark-Lepton Masses and the Neutrino Puzzle in the AGUT Model
Colin D. Froggatt
We first discuss an approach to the fermion mass problem, according to which the whole of flavour mixing for quarks is determined by the mechanism responsible for generating the ph…
Minimal Mixing of Quarks and Leptons in the SU(3) Theory of Flavour
J. L. Chkareuli, C. D. Froggatt, H. B. Nielsen
We argue that flavour mixing, both in the quark and lepton sector, follows the minimal mixing pattern, according to which the whole of this mixing is basically determined by the ph…
Quantum Numbers of AGUT Higgs Fields from the Quark-Lepton Spectrum
C. D. Froggatt, H. B. Nielsen, D. J. Smith
A series of Higgs field quantum numbers in the anti-grand unification model, based on the gauge group , is tested against the spectrum of quark and lepton mass…
Lorentz Invariance and Origin of Symmetries
J. L. Chkareuli, C. D. Froggatt, H. B. Nielsen
In this letter we reconsider the role of Lorentz invariance in the dynamical generation of the observed internal symmetries. We argue that, generally, Lorentz invariance can only b…
Light Higgs Boson in the Spontaneously CP Violating NMSSM
A. T. Davies, C. D. Froggatt, A. Usai
We consider spontaneous CP violation in the Next to Minimal Supersymmetric Standard Model, without the usual discrete symmetry. CP violation can occur at tree level, raising…
Standard Model Higgs Boson Mass from Borderline Metastability of the Vacuum
C. D. Froggatt, H. B. Nielsen, Y. Takanishi
We have studied imposing the condition that the Standard Model effective Higgs potential should have two approximately degenerate vacua, such that the vacuum we live in is just bar…
Spontaneously Generated Gauge Invariance
J. L. Chkareuli, C. D. Froggatt, H. B. Nielsen
We argue that the non-observability of the spontaneous breakdown of Lorentz symmetry (SBLS) caused by the vacuum expectation values of vector fields could provide the origin of all…
Anti-Grand Unification and the Phase Transitions at the Planck Scale in Gauge Theories
L. Laperashvili
This review is devoted to Anti-Grand Unification and to the Multiple Point Model solution of problems of the unification of gauge interactions. According to this model, near the Pl…