Inclusive determination of |V_cb| at Belle

2021/05/17 by R. van Tonder, van Tonder, Raynette
Physics and Astronomy · #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.2105.08001

openalex publication_date 2021/05/17 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We present the measurement of the first to fourth order moments of the four-momentum transfer squared, q², of inclusive B → X_c ℓ ν decays using the full Belle data set consisting of 711~\rm fb^-1 of integrated luminosity at the Υ(4S) resonance for ℓ = e, μ. The measured moments are crucial experimental inputs for a novel, data-driven approach to determine inclusive |V_cb|, which we implement in order to extract a preliminary value of |V_cb| × 10³ = 41.7 ± 1.2.

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