Tau longitudinal polarization in B -> D tau nu and its role in the search for charged Higgs boson
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We study the longitudinal polarization of the tau lepton in B -> D tau nu decay. After discussing possible sensitivities of tau decay modes to the tau polarization, we examine the effect of charged Higgs boson on the tau polarization in B -> D tau nu. We find a relation between the decay rate and the tau polarization, and clarify the role of the tau polarization measurement in the search for the charged Higgs boson.
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Cited by 2 Pith papers
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Null Tests and Lepton Universality in $\Xi_{cc}$ Baryon Decays
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Tau polarization in baryonic semileptonic decays supplies the leading sensitivity to lift EFT degeneracies unresolved by meson measurements in b to c tau nu transitions.
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