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

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

1999-04-20

arxiv.org/abs/hep-ph/9904413v1

Nucl.Phys. B567 (2000) 153-185

Physics

High Energy Physics

High Energy Physics - Phenomenology

26 pages, 3 figures, uses epsfig.sty

Scientific paper

We evaluate matching conditions for the Wilson coefficients of operators mediating the $b \to s \gamma$ 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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