CP asymmetries in dileptonic decays of B-meson in MSSM

TL;DR

This paper investigates how scalar interactions influence CP asymmetries in dileptonic B-meson decays, comparing inclusive and exclusive channels within the MSSM framework to identify potential deviations from the Standard Model.

Contribution

It provides a comparative analysis of CP violation effects in two B-meson decay channels, highlighting the impact of scalar interactions in the MSSM beyond Standard Model predictions.

Findings

Scalar interactions can significantly alter CP asymmetries.

Differences observed between inclusive and exclusive decay channels.

Potential signals for new physics in B-meson CP violation measurements.

Abstract

Scalar interactions (in effective Hamiltonian) can give significant variation of various experimental observables, as comparted to their respective Standard Model values, in dileptonic decays of B-meson. Also the quark level transition $b \to d \ell^- \ell^+$ can be useful to test CP violation. Here we will do comparative study of CP violation in two independent processes, which have the same quark level transition ($b \to d \ell^- \ell^+$), $B \to X_d \ell^- \ell^+$ (the inclusive decay mode) and the exclusive channel $B_d \to \ell^- \ell^+ \gamma$ (radiative dileptonic decay mode). We will mainly focus on the comparative study of scalar interactions on the CP asymmetries in these two different channels.