What we can learn from the angular differential rates (only) in semileptonic B → D^* ℓ ν_ℓ decays

2024/09/16 by G. Martinelli, Martinelli, G., Silvano Simula +3
Physics and Astronomy · Engineering · #Particle physics theoretical and experimental studies #Particle Accelerators and Free-Electron Lasers #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.2409.10492

Abstract

We present a simple approach to the study of semileptonic B → D^* ℓ ν_ℓ decays based on the angular distributions of the final state particles only. Our approach is model independent and never requires the knowledge of \vert V_cb \vert. By studying such distributions in the case of light leptons, a comparison between results from different data sets from the Belle and BelleII Collaborations and between data and Standard Model calculations is also given for several interesting quantities. A good consistency is observed between some of the experimental results and the theoretical predictions.

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