New physics searches in B → D^(*)τν decays

2014/11/18 by V. Bansal, Bansal, Vikas
Computer Science · Physics and Astronomy · #Computational Physics and Python Applications #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.1411.4744

openalex publication_date 2014/11/18 · openalex created_date 2024/04/11 · openalex updated_date 2026/07/28

Abstract

I review the current status of measurements involving semi-tauonic B meson decay at the B-factories. I briefly discuss the experimental methods and highlight the importance of background contributions especially from poorly understood D^** in this study. Perhaps this can also shed some light on the discrepancy in the BaBar measurement of ratio of semi-tauonic and semi-leptonic (e/μ) modes of B decay from the Standard Model (SM) at 3.2σ. I will also discuss one of the New Physics (NP) models that could be experimentally sensitive in being distinguished from the Standard Model (SM).

Related

• Correlating new physics signals in B → D^(*) τν_τ with B → τν_τ
• B → D^(*) τ^- ν_τ and Related Tauonic Topics at Belle
• The experimental review of B -> D^(*) tau nu decays
• B -> tau Leptonic and Semileptonic Decays
• B → D^(*) τν at Belle