Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1994-09-30
Phys.Lett.B344:308-318,1995
Physics
High Energy Physics
High Energy Physics - Phenomenology
(The only changes: We have removed a4wide.sty which worked only with the most recent version of Latex and added one referece),
Scientific paper
10.1016/0370-2693(94)01553-O
We calculate the two-loop QCD mixing of the dimension-five flavor-changing operators that arise in the Standard Model after integrating out the $W$, $Z$ and Higgs bosons and the top-quark, i.e.~the mixing among gluonic and photonic magnetic moment operators. Our calculation completes the two-loop anomalous dimension matrix of operators that govern low energy flavor-changing processes. It is an important ingredient of the next-to-leading calculation of the $B \rightarrow X_s \gamma$ decay rate.
Misiak Mikolaj
Muenz Manfred
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