1,869 research outputs found
Supersymmetric Higgs Boson Decays in the MSSM with Explicit CP Violation
Decays into neutralinos and charginos are among the most accessible
supersymmetric decay modes of Higgs particles in most supersymmetric extensions
of the Standard Model. In the presence of explicitly CP--violating phases in
the soft breaking sector of the theory, the couplings of Higgs bosons to
charginos and neutralinos are in general complex. Based on a specific benchmark
scenario of CP violation, we analyze the phenomenological impact of explicit CP
violation in the Minimal Supersymmetric Standard Model on these Higgs boson
decays. The presence of CP--violating phases could be confirmed either directly
through the measurement of a CP--odd polarization asymmetry of the produced
charginos and neutralinos, or through the dependence of CP--even quantities
(branching ratios and masses) on these phases.Comment: 14 pages, latex, 4 eps figure
Higgs Phenomenology with CPsuperH
The MSSM contains CP-violating phases that may have important observable
effects in Higgs physics. We review recent highlights in Higgs phenomenology
obtained with the code CPsuperH, a useful tool for studies of the production,
mixing and decay of a coupled system of the neutral Higgs bosons at future high
energy colliders such as the LHC, ILC (LC), and a muon collider (MC).
CPsuperH implements the constraints from upper limits on electric dipole
moments, and may be extended to include other related low-energy observables,
such as b -> s \gamma and B -> K l l, and to compute the relic abundance of the
lightest neutralino.Comment: 20 pages, LaTeX, 7 figures, invited article by Modern Physics Letters
A (review section
Remarks on the Upper Bounds on the Higgs Boson Mass from Triviality
We study the effects of the one-loop matching conditions on Higgs boson and
top quark masses on the triviality bounds on the Higgs boson mass using
with corrected two-loop coefficients. We obtain quite higher
results than previous ones and observe that the triviality bounds are not
nearly influenced by varying top quark mass over the range measured at CDF and
D0. The effects of typo errors in and the one-loop
matching condition on the top quark mass are negligible. We estimate the size
of effects on the triviality bounds from the one-loop matching condition on the
Higgs boson mass.Comment: 9 pages, tar'ed gzip'ed uuencoded files, LaTex, 5 PostScript figures.
To appear in Physical Review
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