CP asymmetry in flavour-specific B decays beyond leading logarithms
نویسندگان
چکیده
We compute next-to-leading order QCD corrections to the CP asymmetry afs = Im(Γ12/M12) in flavour-specific Bd,s decays such as Bd → Xlνl or Bs → D − s π . The corrections reduce the uncertainties associated with the choice of the renormalization scheme for the quark masses significantly. In the Standard Model we predict afs = −(4.4± 0.9)× 10 . As a by-product we also obtain the width difference in the Bd system at next-to-leading order in QCD. PACS numbers: 11.30.Er, 12.38.Bx, 13.25.Hw, 14.40.Nd
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تاریخ انتشار 2003