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Exact $\alpha _s$ Calculation of $b\rightarrow s + \gamma $, \ $b\rightarrow s + g$

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arxiv hep-ph/9308349 v1 pith:3CIP6XUN submitted 1993-08-27 hep-ph

classification hep-ph
keywords rightarrowgammaalphacalculationexactassociatedbranchingcoefficients
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

We present an exact $\alpha_s$ calculation of the Wilson coefficients associated with the dipole moment operators. We also give an estimate of the branching ratio for $b\rightarrow s \gamma$. We find that higher dimensional effects are under control within $9\%$ for $BR(b\rightarrow s \gamma)=(4.3\pm 0.37 )\times 10^{-4}$.

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Cited by 1 Pith paper

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  1. Constraining four-heavy-quark operators with top-quark, Higgs, and electroweak precision data

    hep-ph 2025-07 conditional novelty 6.0 of 10

    A combined fit of LHC and LEP data constrains the five four-heavy-quark Wilson coefficients, and shows that gamma5-scheme choices can shift the resulting bounds.

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