A Fresh Look at the B Semileptonic Branching Ratio and Beauty Lifetimes

1996/05/08 by Matthias Neubert, Neubert, Matthias
Computer Science · Physics and Astronomy · #Computational Physics and Python Applications #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/9605256

14 pages, 5 figures appended, to appear in the Proceedings of Les Rencontres de Physique de la Vallee d'Aoste, Results and Perspectives in Particle Physics (La Thuile, Italy, March 1996)

arxiv created 1996/05/08 · openalex publication_date 1996/05/08 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We discuss two problems in the theory of heavy-quark decays: an understanding of the semileptonic branching ratio of B mesons, and of the lifetime ratio τ(Λ_b)/τ(B⁰). We also present a model-independent study of spectator contributions to the lifetimes of beauty hadrons.

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