Mixing-induced CP asymmetries in inclusive B decays

M. Beneke, G. Buchalla, I. Dunietz

Research output: Contribution to journalArticlepeer-review

49 Scopus citations

Abstract

We consider CP violating asymmetries that are induced by particle-antiparticle mixing in inclusive channels of neutral B meson decay. Not only are the branching ratios sizable, at the 1% to 50% level, but some of those asymmetries are expected to be large because of substantial CKM phases. The inclusive sum partially dilutes the asymmetries, but the dilution factor is calculable. Assuming local quark-hadron duality, the CKM parameters can be extracted. We discuss in detail the determination of sin 2α from charmless final states in decays of Bd mesons and survey the asymmetries for other inclusive final states. The total inclusive time-dependent asymmetry, where all modes of a weakly decaying neutral meson are summed over, is non-vanishing in general and measures Im(Γ12/M12). While probably not yet sensitive to standard model predictions, meaningful CP violation studies can be conducted with existing data samples of inclusive neutral B decays.

Original languageEnglish
Pages (from-to)132-142
Number of pages11
JournalPhysics Letters B
Volume393
Issue number1-2
DOIs
StatePublished - 6 Feb 1997
Externally publishedYes

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