Search for CP violation in semileptonic Bs decays

D0 Collaboration

    Research output: Chapter in Book/Report/Conference proceedingConference contribution


    We have performed a search for CP violation in a sample of Bs -> Ds mu X decays corresponding to 5~fb−1 of proton-antiproton collisions collected by the D0 detector in Run~II at the Fermilab Tevatron Collider. New physics in B0s mixing could contribute a significant CP violating weak phase, which would be observed as a difference in the decay-time distribution for B0s→B¯0s oscillated states versus that for B¯0s→B0s. A fit to the decay-time distributions of the B0s/B¯0s candidates yields the flavor-specific asymmetry asfs=[−1.7±9.1(stat)+1.4−1.5(syst)]×10−3, which excludes CP violation due to new physics within the experimental sensitivity.
    Original languageEnglish
    Title of host publicationhost publication
    Publication statusPublished - 2009


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