Lifetime difference in mixing: Standard Model and beyond

2007/07/02 by Andriy Badin, Fabrizio Gabbiani, Alexey A. Petrov · 1 citation
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1016/j.physletb.2007.07.049

published as Phys.Lett.B653:230-240,2007 · 21 pages, 6 figures

arxiv created 2007/07/02 · openalex publication_date 2007/08/02 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

We present a calculation of 1/m²_b corrections to the lifetime differences of B_s mesons ΔΓ_s in the heavy-quark expansion. We find that they are small to significantly affect ΔΓ_s and present the result for lifetime difference including non-perturbative 1/m_b and 1/m_b² corrections. We also analyze the generic ΔB = 1 New Physics contributions to ΔΓ_s and provide several examples.

Citations

• Implications of the Measurement of theBs0B¯s0Mass Difference
• Higgs sector of the left-right model with explicitCPviolation
• An effective field theory for collinear and soft gluons: Heavy to light decays
• QCD Factorization forB→ππDecays: Strong Phases andCPViolation in the Heavy Quark Limit
• B-parameters of the complete set of matrix elements of (ΔB = 2) operators from the lattice
• Review of Particle Physics

Cited by

• Unparticle physics effects inBs-B¯smixing