two-loop current–current operator contribution to the non-leptonic qcd penguin amplitude
Abstract
The computation of direct CP asymmetries in charmless B decays at next-to-next-to-leading order (NNLO) in QCD is of interest to ascertain the short-distance contribution. Here we compute the two-loop penguin contractions of the current–current operators Q1,2 and provide a first estimate of NNLO CP asymmetries in penguin-dominated b→s transitions.
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236698
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0x95644003c57E6F55A65596E3D9Eac6813e3566dA
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236698
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10.1016/j.physletb.2015.09.037
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Scimatic Chain (ID: 481)
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