Phenomenological study of heavy hadron lifetimes

• Published in: The journal of high energy physics Vol. 2018; no. 11; pp. 1 - 44
• Main Author: Cheng, Hai-Yang
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.11.2018; Springer Nature B.V; SpringerOpen
• Subjects: Baryons; Charm (particle physics); Classical and Quantum Gravitation; Elementary Particles; Hadrons; Heavy Quark Physics; High energy physics; Interference; Lifetime; Mesons; Operators; Perturbative QCD; Physics; Physics and Astronomy; Quantum Field Theories; Quantum Field Theory; Quantum Physics; Quark models; Quarks; Regular Article - Theoretical Physics; Relativity Theory; String Theory; Sum rules; Heavy Quark Physics; Perturbative QCD

A bstract The lifetimes of bottom and charmed hadrons are analyzed within the framework of the heavy quark expansion (HQE). Lifetime differences arise from the spectator effects such as weak W -annihilation and Pauli interference. Spectator effects originating from dimension-7 four-quark operators a...