Spectator effects and quark-hadron duality in inclusive beauty decays

2000/09/26 by S. Arunagiri, Arunagiri, S.
Physics and Astronomy · #Cosmology and Gravitation Theories #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/0009293

65+8 pages incl. 3 eps. Latex

arxiv created 2000/09/26 · openalex publication_date 2000/09/26 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

The two important issues concerning the theory of inclusive decays are studied: (1) evaluation of expectation values of four-quark operators in order to systematically include the spectator effects and (2) estimation of duality breaking corrections in heavy quark expansion. Our study leads to the theoretical prediction of the ratio of lifetimes of Λ_b and B close to the experimental one and the duality breaking corrections of about 10% of the leading decay rate.

Citations

• Perturbative QCD with string tension
• Quarks, Gluons and Lattices

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