Lifetime difference in B_s mixing: Standard Model and beyond

Andriy Badin; Fabrizio Gabbiani; Alexey A. Petrov

Lifetime difference in B_s mixing: Standard Model and beyond

High Energy Physics - Phenomenology 2009-09-29 v1

Authors: Andriy Badin , Fabrizio Gabbiani , Alexey A. Petrov

Abstract

We present a calculation of $1/m_b^2$ corrections to the lifetime differences of $B_s$ mesons in the heavy-quark expansion. We find that they are small to significantly affect $\Delta\Gamma$ $(B_s)$ 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 the lifetime difference of $B_s$ mesons and provide several examples

Keywords

qcd corrections in b decays

Cite

@article{arxiv.0909.4897,
  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:0909.4897},
  year   = {2009}
}

Comments

7 pages, 5 figures. To be published in the proceedings of DPF-2009, Detroit, MI, July 2009, eConf C090726. Presented by Andriy Badin at APS DPF 2009 meeting

Lifetime difference in B_s mixing: Standard Model and beyond

Abstract

Keywords

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