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

Takahiro MIURA·Minoru TANAKA
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Abstract

We study the exclusive semi-tauonic B decay, $\bar B \to D τ\barν_τ$, 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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Takahiro MIURA, Minoru TANAKA. 2001-09-26. $\bar B\to Dτ\barν_τ$ in two-Higgs-doublet model. https://arxiv.org/abs/hep-ph/0109244

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