TY - JOUR
T1 - On radiative CP violation in (supersymmetric) two Higgs doublet models
AU - Kong, Otto C.W.
AU - Lin, Feng Li
N1 - Funding Information:
O.K. is indebted to P.H. Frampton for discussions and encouragement, and for suggestions on improving the manuscript. F.L. wants to thank L.N. Chang and T. Takeuchi for discussions in the early phase of this work. O.K. was supported by the US Department of Energy under Grant DE-FG05-85ER-40219, Task B, and a UNC dissertation fellowship. F.L. was partly supported by the US Department of Energy under Grant DE-FG05-92ER-40709, Task A.
PY - 1998/2/11
Y1 - 1998/2/11
N2 - 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.
AB - 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.
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U2 - 10.1016/S0370-2693(97)01450-0
DO - 10.1016/S0370-2693(97)01450-0
M3 - Article
AN - SCOPUS:0346836935
SN - 0370-2693
VL - 419
SP - 217
EP - 222
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
IS - 1-4
ER -