Lifetime Difference in B_s mixing: Standard Model and beyond
High Energy Physics - Phenomenology
2008-11-26 v1
Abstract
We present a calculation of 1/m^2_b corrections to the lifetime differences of B_s mesons \Delta \Gamma_s in the heavy-quark expansion. We find that they are small to significantly affect \Delta \Gamma_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 \Delta B = 1 New Physics contributions to \Delta \Gamma_s and provide several examples.
Keywords
Cite
@article{arxiv.0707.0294,
title = {Lifetime Difference in B_s mixing: Standard Model and beyond},
author = {Andriy Badin and Fabrizio Gabbiani and Alexey A. Petrov},
journal= {arXiv preprint arXiv:0707.0294},
year = {2008}
}
Comments
21 pages, 6 figures