Effects of charged Higgs boson and QCD corrections in $\bar B \to D τ \barν_τ$

Details Effects of charged Higgs boson and QCD corrections in $\bar B \to D τ \barν_τ$ Effects of charged Higgs boson and QCD corrections in $\bar B \to D τ \barν_τ$

2002-10-03

arxiv.org/abs/hep-ph/0210051v3

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 5 figures, Talk presented by T. Miura at 3rd Workshop on Higher Luminosity B Factory, August 6-7, 2002, Shonan, Japa

Scientific paper

We study effects of charged Higgs boson exchange in $\bar B \to D \tau \bar\nu_{\tau}$. The Yukawa couplings of Model II of two-Higgs-doublet model, which has the same Yukawa couplings as MSSM, is considered. We evaluate the decay rate including next-to-leading QCD corrections and estimate uncertainties in the theoretical calculation. Our analysis will contribute to probe an extended Higgs sector at B factory experiments.

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