Article ID Journal Published Year Pages File Type
1850768 Physics Letters B 2015 8 Pages PDF
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 Q1,2Q1,2 and provide a first estimate of NNLO CP asymmetries in penguin-dominated b→sb→s transitions.

Related Topics
Physical Sciences and Engineering Physics and Astronomy Nuclear and High Energy Physics
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