1997/07/31 by Otto C. W. Kong, Feng-Li Lin · 11 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Fine-tuning #Gaugino #Geography #Higgs boson #Higgsino #Minimal Supersymmetric Standard Model #Mixing (physics) #Neutrino Physics Research #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum mechanics #Radiative transfer #Standard Model (mathematical formulation) #Supersymmetry #hep-ph
paper · pdf · open access · doi:10.1016/s0370-2693(97)01450-0
published in Physics Letters B 419(1-4), 217-222 (Elsevier BV) · slight modifications, new versions of figures, version to be published in Phys. Lett. B
arxiv created 1997/11/20 · openalex publication_date 1998/02/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We discuss the feasibility of spontaneous CP violation being induced by radiative corrections in 2HDM's, emphasizing on a consistent treatment at 1-loop level. Specifically, we analyze the cases of gaugino/higgsino effect on MSSM, and a new model proposed here with an extra, exotic, quark doublet. The latter model is phenomenologically interesting. One conclusion is that some fine tuning is in general needed for the scenario to work. The case for the new model requires a tree level mass mixing between the two Higgses, which fits in the standard SUSY picture. The fine tuning requires is then very moderate in magnitude and in a way natural.