2001/05/25 by A. T. Davies, A.T. Davies, C.D. Froggatt +2 · 15 citations
Computer Science · Physics and Astronomy · #Boson #CP violation #Computational Physics and Python Applications #Dipole #Electric dipole moment #Higgs boson #Minimal Supersymmetric Standard Model #Neutrino Physics Research #Particle physics theoretical and experimental studies #Standard Model (mathematical formulation) #Strong CP problem #hep-ph
paper · pdf · open access · doi:10.1016/s0370-2693(01)00859-0
published in Physics Letters B 517(3-4), 375-382 (Elsevier BV) · 14 page LaTeX file
arxiv created 2001/05/25 · openalex publication_date 2001/10/01 · arxiv updated 2014/11/17 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We consider spontaneous CP violation in the next to minimal supersymmetric standard model, without the usual Z3 discrete symmetry. CP violation can occur at tree level, raising a potential conflict with the experimental bounds on the electric dipole moments of the electron and neutron. One escape from this is to demand that the CP violating angles are small, but we find that this entails a light neutral Higgs particle. This is almost pseudoscalar, can have a high singlet content, and will be hard to detect experimentally.