$B\to X_s\tau^+\tau^-$ in a CP softly broken two Higgs doublet model

TL;DR

This paper analyzes the decay of B-mesons into strange hadronic states and tau pairs within a CP softly broken two Higgs doublet model, highlighting the significant impact of neutral Higgs bosons at large tanβ and proposing a measurement for direct CP asymmetry.

Contribution

It provides detailed calculations of decay observables in a CP softly broken two Higgs doublet model, emphasizing the role of neutral Higgs contributions at large tanβ and suggesting experimental measurement of CP asymmetry.

Findings

Neutral Higgs bosons significantly affect decay observables at large tanβ.

Proposed measurement of direct CP asymmetry in forward-backward asymmetry.

Calculated differential branching ratio and lepton polarization in the model.

Abstract

The differential branching ratio, forward-backward asymmetry, CP asymmetry and lepton polarization for a B-meson to decay to strange hadronic final states and a $\tau^+\tau^-$ pair in a CP softly broken two Higgs doublet model are computed. It is shown that contributions of neutral Higgs bosons to the decay are quite significant when $\tan\beta$ is large. And it is proposed to measure the direct CP asymmetry in back-forward asymmetry.