2013/04/16 by P. Ko, Ko, P., Yuji Omura +3
Engineering · Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #Particle Accelerators and Free-Electron Lasers #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex #hep-ph
paper · pdf · doi:10.48550/arxiv.1304.4413
5 pages, 4 figures. Talk given at Toyama International Workshop on Higgs as a Probe of New Physics 2013 (HPNP2013)
arxiv created 2013/04/16 · openalex publication_date 2013/04/16 · arxiv updated 2013/04/17 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We investigate the semileptonic and leptonic B decays, B to D(*) tau nu and B to tau nu in our multi-Higgs-doublet models, while keeping in mind the enhancement of the top forward-backward (FB) asymmetry (AtFB) at the Tevatron. In these models, the extra (pseudo)scalar bosons contribute to AtFB with large flavor-changing Yukawa couplings involving the top quark, but the contribution of the charged Higgs boson to AtFB is negligible. However, it may significantly affect B decays: especially, B to D(*) tau nu and B to tau nu. We investigate the constraints on the B decays, based on the recent results in BaBar and Belle experiments, and discuss the possibility that the allowed parameter region in the B decays can achieve large AtFB.