Three-loop matching of the dipole operators for b -> s gamma and b -> s g
High Energy Physics - Phenomenology
2010-04-05 v1
Abstract
We evaluate the three-loop matching conditions for the dimension-five operators that are relevant for the b -> s gamma decay. Our calculation completes the first out of three steps (matching, mixing and matrix elements) that are necessary for finding the next-to-next-to-leading QCD corrections to this process. All such corrections must be calculated in view of the ongoing accurate measurements of the B -> Xs gamma branching ratio.
Cite
@article{arxiv.hep-ph/0401041,
title = {Three-loop matching of the dipole operators for b -> s gamma and b -> s g},
author = {Mikolaj Misiak and Matthias Steinhauser},
journal= {arXiv preprint arXiv:hep-ph/0401041},
year = {2010}
}
Comments
23 pages, 5 figures, uses graphicx