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

Comments: 23 pages including 8 figs