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arXiv · hep-ph/0504194

Three-Loop Mixing of Dipole Operators

Martin Gorbahn·Ulrich Haisch·Mikolaj Misiak
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Abstract

We calculate the complete three-loop O(alpha_s^3) anomalous dimension matrix for the dimension-five dipole operators that arise in the Standard Model after integrating out the top quark and the heavy electroweak bosons. Our computation completes the three-loop anomalous dimension matrix of operators that govern low-energy |Delta F| = 1 flavor-changing processes, and represents an important ingredient of the next-to-next-to-leading order QCD analysis of the Bbar -> X_s gamma decay.

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Martin Gorbahn, Ulrich Haisch, Mikolaj Misiak. 2005-08-15. Three-Loop Mixing of Dipole Operators. https://doi.org/10.1103/physrevlett.95.102004

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