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arXiv · 0909.4897

Lifetime difference in B_s mixing: Standard Model and beyond

Andriy Badin·Fabrizio Gabbiani·Alexey A. Petrov
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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 $ΔΓ$ $(B_s)$ and present the result for lifetime difference including non-perturbative $1/m_b$ and $1/m_b^2$ corrections. We also analyze the generic $ΔB$ = 1 New Physics contributions to the lifetime difference of $B_s$ mesons and provide several examples

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Andriy Badin, Fabrizio Gabbiani, Alexey A. Petrov. 2009-09-26. Lifetime difference in B_s mixing: Standard Model and beyond. https://arxiv.org/abs/0909.4897

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