期刊
NUCLEAR PHYSICS B
卷 749, 期 1-3, 页码 325-337出版社
ELSEVIER
DOI: 10.1016/j.nuclphysb.2006.05.026
关键词
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We present an independent calculation of that part of the O(alpha(2)(s)) contribution to the decay width Gamma ((B) over bar -> X-s gamma) which arises from the self-interference term of the electromagnetic dipole operator O-7. Using a different method, we find complete agreement with a previous calculation. This NNLL contribution is an important ingredient for the complete NNLL prediction of Gamma((B) over bar -> X-s gamma) which will resolve the charm quark mass ambiguity appearing at NLL accuracy. (c) 2006 Published by Elsevier B.V.
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