Higgs scalar-pseudoscalar mixing in the minimal supersymmetric Standard Model
نویسندگان
چکیده
منابع مشابه
Higgs Scalar-Pseudoscalar Mixing in the Minimal Supersymmetric Standard Model
In the minimal supersymmetric Standard Model, the heaviest CP-even Higgs boson H and the CP-odd Higgs scalar A are predicted to be almost degenerate in mass at the tree level, for the wide kinematic range MA > 2MZ and tanβ ≥ 2. However, if large soft-CPviolating Yukawa interactions involving scalar quarks of the third generation are present in the theory, then the CP invariance of the Higgs pot...
متن کاملHiggs Sector in Extensions of the Minimal Supersymmetric Standard Model
Extensions of the minimal supersymmetric standard model (MSSM) with additional singlet scalar fields solve the important μ-parameter fine-tuning problem of the MSSM.We compute and compare the neutral Higgs boson mass spectra, including one-loop corrections, of the following MSSM extensions: next-tominimal supersymmetric standard model (NMSSM), the nearly-minimal supersymmetric standard model (n...
متن کاملCP-Odd Tadpole Renormalization of Higgs Scalar-Pseudoscalar Mixing
We consider an Abelian model with a CP-conserving Higgs potential spanned by two complex Higgs elds. The CP invariance of the Higgs potential is then broken explicitly beyond the Born approximation by introducing soft-CP-violating Yukawa interactions. Based on the non-renormalization theorem, we derive the consistency conditions under which a CPodd counterterm exists and, at the same time, rend...
متن کاملBounds on the Higgs Mass in the Standard Model and the Minimal Supersymmetric Standard Model A
Depending on the Higgs-boson and top-quark masses, M H and Mt, the effective potential of the Standard Model can develop a non-standard minimum for values of the field much larger than the weak scale. In those cases the standard minimum becomes metastable and the possibility of decay to the non-standard one arises. Comparison of the decay rate to the non-standard minimum at finite (and zero) te...
متن کاملXsγ in minimal supersymmetric standard model with general flavor mixing ∗
We present the results of our analysis on b → sγ in the minimal supersymmetric standard model with a general flavor mixing in the squark sector. We identify the next–to–leading order focusing effect, which considerably reduces the gluino contribution to b → sγ relative to the leading order calculation. We illustrate that BR(B → Xsγ) is still very sensitive to the flavor mixing parameters, δd LL...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physics Letters B
سال: 1998
ISSN: 0370-2693
DOI: 10.1016/s0370-2693(98)00771-0