On the short distance nonperturbative corrections in heavy quark expansion

2000/09/10 by S. Arunagiri, Arunagiri, S.
Engineering · Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle Accelerators and Free-Electron Lasers #Particle physics theoretical and experimental studies #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/0009109

Talk given at Latttice 2000, Aug. 17 - 22, 2000, Bangalore, India

arxiv created 2000/09/10 · openalex publication_date 2000/09/10 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We estimate the renormalon corrections to the inclusive decay rate of heavy hadrons. We assume the gluon mass term λ² ≫ `² to imitate the short distance nonperturbative effects. It is found that the the inclusive decay rates are corrected by an amount of about 0.2 Γ₀ for B meson and 0.21 Γ₀ for baryon. This is significant in view of the discrepancy of lifetimes of B and \lbb.

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