CP violation in charged Higgs decays in the MSSM

Abstract

In the MSSM with complex parameters loop corrections to the decays $H^{+}\to t\bar{b}$ and $H^{-}\to \bar{t}b$ with $t\to bW$ and $W\to l\nu$ lead to CP-violating asymmetries: a decay rate asymmetry, a forward-backward asymmetry and an energy asymmetry. We derive explicit formulas for them and perform a detailed numerical analysis. We study the dependence on the parameters and the phases involved. In particular, the influence of the running Yukawa coupling is taken into account. The decay rate asymmetry can go up to 25%, the forward-backward and the energy asymmetry up to 10%.

18 pages, 13 postscript figures, JHEP style, Feynman graphs replaced, one reference added

References in corpus (3)

• Supersymmetry Parameter Analysis: SPA Convention and Project
• CP Studies and Non-Standard Higgs Physics
• Improved description of charged Higgs boson production at hadron colliders

Cited by in corpus (10)

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• CP violation in SUSY
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• CP violation in $H^{\pm }t$ production at the LHC
• Testing the CP-violating MSSM in stau decays at the LHC and ILC
• CP Asymmetry in Charged Higgs Decays to Chargino-Neutralino
• SUSY CP phases and asymmetries at colliders
• CP Asymmetry in Charged Higgs Decays in MSSM
• CP Violating Asymmetry in Stop Decay into Bottom and Chargino