### QCD and SUSY-QCD corrections to the Three-Body Decay of the Charged Higgs BosonQCD and SUSY-QCD corrections to the Three-Body Decay of the Charged Higgs Boson

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 Author Bi, Xiao-Jun ♦ Dai, Yuan-Ben ♦ Qi, Xiao-Yuan Source arXiv.org Content type Text File Format PDF Date of Submission 1999-07-13 Language English
 Subject Domain (in DDC) Computer science, information & general works ♦ Natural sciences & mathematics ♦ Physics Subject Keyword High Energy Physics - Phenomenology ♦ physics:hep-ph Abstract The ${\cal O}(\alpha_s)$ QCD corrections to the three-body decay width of the charged Higgs $\Gamma$($H^+\to W^+b\bar{b}$) are discussed in the MSSM model. Our calculations indicate that the standard QCD corrections to the three-body decay mode raise the width by about 12% and the supersymmetric QCD corrections(due to $\tilde{g}, \tilde{t}, \tilde{b}$ exchanges) can be comparable to or even larger than the standard QCD corrctions in some regions of the supersymmetric parameter space. This is mainly due to the effect of large left-right mixing of stop($\tilde{t}$). It could significantly affect the phenomenology of the $H^+$ search. Description Reference: Phys.Rev. D61 (2000) 015002 Educational Use Research Learning Resource Type Article Page Count 14