2007/01/31 by A. G. Akeroyd, Chuan-Hung Chen, Chuan Hung Chen · 40 citations
Mathematics · Physics and Astronomy · #Combinatorics #Dark Matter and Cosmic Phenomena #Higgs boson #Mathematics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.1103/physrevd.75.075004
published in Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields 75(7) (American Physical Society) · 9 pages, 4 figures, reference added, minor alterations, version to appear in Phys.Rev.D
openalex publication_date 2007/04/09 · arxiv created 2007/04/13 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The recent observation of the purely leptonic decay B^\ifmmode±\else\textpm\fi\ensuremath→\ensuremathτ^\ifmmode±\else\textpm\fi\ensuremathν_\ensuremathτ at the B factories permits a sizable contribution from a charged Higgs boson (H^\ifmmode±\else\textpm\fi). Such a H^\ifmmode±\else\textpm\fi would also contribute to the decays Ds^\ifmmode±\else\textpm\fi\ensuremath→\ensuremathμ^\ifmmode±\else\textpm\fi\ensuremathν_\ensuremathμ and Ds^\ifmmode±\else\textpm\fi\ensuremath→\ensuremathτ^\ifmmode±\else\textpm\fi\ensuremathν_\ensuremathτ, which are being measured with increasing precision at CLEO-c. We show that the branching ratios of Ds^\ifmmode±\else\textpm\fi\ensuremath→\ensuremathμ^\ifmmode±\else\textpm\fi\ensuremathν_\ensuremathμ and Ds^\ifmmode±\else\textpm\fi\ensuremath→\ensuremathτ^\ifmmode±\else\textpm\fi\ensuremathν_\ensuremathτ could be suppressed by up to 10% from the standard model prediction, which is larger than the anticipated precision in the measurements of these decays at forthcoming BES-III.