Higgs hunting with B decays
| dc.creator | Nierste, Ulrich | |
| dc.date | 2008-07-23 | |
| dc.date | 2008-08-28 | |
| dc.date.accessioned | 2026-07-07T12:35:22Z | |
| dc.date.available | 2026-07-07T12:35:22Z | |
| dc.description | B physics is sensitive to the effects of Higgs bosons in the Minimal Supersymmetric Standard Model, if the parameter tan beta is large. I briefly summarise the role of B -> mu+ mu- and B -> tau nu in the hunt for new Higgs effects and present new results on the decay B -> D tau nu: Using the analyticity properties of form factors one can predict the ratio R=Br(B -> D tau nu)/Br(B -> D l nu), l=e,mu, with small hadronic uncertainties. In the Standard Model one finds R= 0.31 +/- 0.02, Br(B^- -> D^0 tau^- anti-nu) = (0.71 +/- 0.09)% and Br(anti-B^0 -> D^+ tau^- anti-nu)= (0.66 +/- 0.08)%, if the vector form factor of the Heavy Flavor Averaging Group is used. B -> D tau nu is competitive with B -> tau nu in the search for effects of charged Higgs bosons. Especially sensitive to the latter is the differential distribution in the decay chain anti-B -> D anti-nu tau^-[->pi- nu]. | |
| dc.description | Talk at Second Workshop on Theory, Phenomenology and Experiments in Heavy Flavour Physics, June 16-18 2008, Anacapri, Italy. 6 pages, 4 figures. Remark on D energy, 3 figures and Eqs. (7),(10) corrected. 3 references added | |
| dc.identifier | https://arxiv.org/abs/0807.3733 | |
| dc.identifier | http://arxiv.org/abs/0807.3733 | |
| dc.identifier | Nucl.Phys.Proc.Suppl.185:195-200,2008 | |
| dc.identifier | doi:10.1016/j.nuclphysbps.2008.10.024 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/217744 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Higgs hunting with B decays | |
| dc.type | text |