Theory overview of tree-level B decays

2017/10/27 by De Fazio, Fulvia
#FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph)

paper · doi:10.48550/arxiv.1710.10017

Abstract

I describe the theoretical progress in the study of semileptonic tree-level B decays, and its interplay with recent experimental results. In particular, I focus on two anomalies: the ratios R(D^(*))=\frac\cal B(B → D^(*) τ ν_τ)\cal B(B → D^(*) ℓ ν_ℓ) and the inclusive versus exclusive determination of |V_cb|. I review a few explanations proposed for such anomalies, and discuss tests to shed light on their origin.

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