Lightest Higgs boson decays h → MZ in the μ from ν supersymmetric standard model

Model Independent Upper Bound on the Lightest Higgs Boson Mass in Supersymmetric Standard Models

One of the main features of the Minimal Supersymmetric Standard Model (MSSM) is the existence of an absolute tree-level upper bound mh on the mass of the CP = +1 lightest Higgs boson, equal to mZ , that could affect detectability at future colliders. The above bound is spoiled by radiative corrections and by an enlarged Higgs sector, as e.g. a gauge singlet. Radiative corrections in the MSSM ca...

Higgs Boson Decays in the Minimal Supersymmetric Standard Model with Radiative Higgs Sector CP Violation

We re–evaluate the decays of the Higgs bosons in the minimal supersymmetric standard model (MSSM) where the tree-level CP invariance of the Higgs potential is explicitly broken by the loop effects of the third–generation squarks with CP–violating soft–breaking Yukawa interactions. This study is based on the mass matrix of the neutral Higgs bosons that is valid for arbitrary values of all the re...

Can the mass of the lightest Higgs boson of the minimal supersymmetric model be larger than mZ?

ln the minimal supersymmetric model (MSSM), the tree level -mass of the lightest Higgs scalar h cannot be larger than the mass of the Z boson. We have computed the one-loop radiative correction to the upper bound on m„o as a function of the free parameters of the MSSM. We find that the dominant correction to m„o —mz is large and positive and grows like mi, where m& is the top-quark mass. As a r...

Μ + Μ − Decays within the Minimal Supersymmetric Standard Model

HDECAY: a Program for Higgs Boson Decays in the Standard Model and its Supersymmetric Extension

We describe the Fortran code HDECAY, which calculates the decay widths and the branching ratios of the Standard Model Higgs boson, and of the neutral and charged Higgs particles of the Minimal Supersymmetric extension of the Standard Model. The program is self-contained (with all subroutines included), easy to run, fast and calculates the decay widths and branching ratios according to the curre...