Lifetime Difference in B_s mixing: Standard Model and beyond

Abstract

We present a calculation of 1/m^2_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_b^2 corrections. We also analyze the generic ΔB = 1 New Physics contributions to ΔΓ_s and provide several examples.

21 pages, 6 figures

References in corpus (1)

• Lifetime Difference and CP-Violating Phase in the B_s^0 System

Cited by in corpus (3)

• Unparticle physics effects in B_s mixing
• The Theoretical status of $\bar{B}-B$-mixing and lifetimes of heavy hadrons
• Lifetime difference in D^0 - \bar{D^0} mixing within R-parity-violating SUSY