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CP asymmetry in flavour-specific B decays beyond leading logarithms

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arxiv hep-ph/0307344 v2 pith:SWOVTJVL submitted 2003-07-28 hep-ph

CP asymmetry in flavour-specific B decays beyond leading logarithms

classification hep-ph
keywords asymmetrycorrectionsdecaysflavour-specificnext-to-leadingorderassociatedbeyond
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We compute next-to-leading order QCD corrections to the CP asymmetry a_{fs} = Im(Gamma_{12}/M_{12}) in flavour-specific B_{d,s} decays such as B_d->X l nu or B_s->D^-_s pi^+. The corrections reduce the uncertainties associated with the choice of the renormalization scheme for the quark masses significantly. In the Standard Model we predict a^d_{fs} = -(5.0 +- 1.1)*10^{-4}. As a by-product we also obtain the width difference in the B_d system at next-to-leading order in QCD.

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Forward citations

Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

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    Three-loop perturbative corrections to B and D meson lifetime ratios are calculated, producing values that agree with experiment when using HQET sum rules or lattice inputs.

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    hep-ex 2024-11 accept novelty 2.0

    The Heavy Flavour Averaging Group reports updated world averages for b-hadron, c-hadron, and tau-lepton properties including branching fractions, lifetimes, mixing, CP violation, and CKM elements.