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arXiv · 0707.0294

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^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.

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Andriy Badin, Fabrizio Gabbiani, Alexey A. Petrov. 2007-07-02. Lifetime Difference in B_s mixing: Standard Model and beyond. https://doi.org/10.1016/j.physletb.2007.07.049

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