$\bar B\to Dτ\barν_τ$ in two-Higgs-doublet model

Details $\bar B\to Dτ\barν_τ$ in two-Higgs-doublet model $\bar B\to Dτ\barν_τ$ in two-Higgs-doublet model

2001-09-26

arxiv.org/abs/hep-ph/0109244v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, 4 figures, Talk presented by T. Miura at Workshop on Higher Luminosity B Factory, August 23-24, 2001, KEK, Japan

Scientific paper

We study the exclusive semi-tauonic B decay, $\bar B \to D \tau \bar\nu_{\tau}$, in two-Higgs-doublet models. Using recent experimental and theoretical results on hadronic form factors, we estimate theoretical uncertainties in the branching ratio. As a result, we clarify the potential sensitivity of this mode to the charged Higgs exchange. Our analysis will help to probe the charged Higgs boson at present and future B factory experiments.

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