Charged-Higgs effects in a new B ---> D [Tau Nu] differential decay distribution

We 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 betw...

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Hauptverfasser: Nierste, Ulrich (VerfasserIn) , Trine, Stéphanie (VerfasserIn) , Westhoff, Susanne (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 11 July 2008
In: Physical review. D, Particles, fields, gravitation, and cosmology
Year: 2008, Jahrgang: 78, Heft: 1
ISSN:1550-2368
DOI:10.1103/PhysRevD.78.015006
Online-Zugang:Verlag, Pay-per-use, Volltext: http://dx.doi.org/10.1103/PhysRevD.78.015006
Verlag, Pay-per-use, Volltext: https://link.aps.org/doi/10.1103/PhysRevD.78.015006
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Verfasserangaben:Ulrich Nierste, Stephanie Trine, and Susanne Westhoff
Beschreibung
Zusammenfassung:We 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.
Beschreibung:Gesehen am 14.06.2017
Beschreibung:Online Resource
ISSN:1550-2368
DOI:10.1103/PhysRevD.78.015006