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arXiv · hep-ph/9904413

Matching Conditions for $b \to s γ$ and $b \to s gluon$ in Extensions of the Standard Model

Christoph Bobeth·Mikolaj Misiak·Joerg Urban
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Abstract

We evaluate matching conditions for the Wilson coefficients of operators mediating the $b \to s γ$ and $b \to s gluon$ transitions in a large class of extensions of the Standard Model. The calculation is performed at the leading order in flavor-changing couplings and includes two-loop QCD corrections. These corrections can be numerically important when approximate cancellations occur among the new physics contributions and/or the SM one.

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Christoph Bobeth, Mikolaj Misiak, Joerg Urban. 1999-04-20. Matching Conditions for $b \to s γ$ and $b \to s gluon$ in Extensions of the Standard Model. https://doi.org/10.1016/s0550-3213(99)00688-4

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