CP asymmetries in charged Higgs boson decays in MSSM

TL;DR

This paper investigates CP violation in charged Higgs boson decays within the MSSM, showing that loop corrections can induce asymmetries up to 25%, highlighting potential signals of new CP-violating physics.

Contribution

It provides the first detailed analytical and numerical analysis of CP asymmetries in charged Higgs decays in the MSSM, emphasizing the role of loop corrections with SUSY particles.

Findings

Decay rate asymmetry up to 25%

Forward-backward asymmetry up to 10%

CP violation effects are significant in MSSM charged Higgs decays

Abstract

In the Standard Model with Minimal Supersymmetry, the Lagrangian contains complex parameters which lead to additional CP violation. We study CP violating asymmetries in the decays of the MSSM charged Higgs boson, induced by loop corrections with intermediate SUSY particles, and perform analytical and numerical analysis. The decay rate asymmetry can go up to 25% and the forward-backward asymmetry can reach up to 10%.