Charged-Higgs effects in a new B -> D tau nu differential decay distribution

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dc.creatorNierste, Ulrich
dc.creatorTrine, Stephanie
dc.creatorWesthoff, Susanne
dc.date2008-01-31
dc.date2008-06-02
dc.date.accessioned2026-07-07T11:55:45Z
dc.date.available2026-07-07T11:55:45Z
dc.descriptionWe show that the decay mode B -> D tau nu is competitive with and complementary to B -> tau nu in the search for charged-Higgs effects. Updating the relevant form factors, we find that the differential distribution in the decay chain B -> D nu tau[-> pi nu] excellently discriminates between Standard-Model and charged-Higgs contributions. By measuring the D and pi energies and the angle between the D and pi three-momenta one can determine the effective charged-Higgs coupling including a possible CP-violating phase.
dc.description5 pages, plots of HFAG form factor and B -> tau nu branching fraction included, text extended, conclusions unchanged, to appear in Phys. Rev. D
dc.identifierhttps://arxiv.org/abs/0801.4938
dc.identifierhttp://arxiv.org/abs/0801.4938
dc.identifierPhys.Rev.D78:015006,2008
dc.identifierdoi:10.1103/PhysRevD.78.015006
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/205347
dc.subjectHigh Energy Physics - Phenomenology
dc.titleCharged-Higgs effects in a new B -> D tau nu differential decay distribution
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