Search for B+ --> mu+ nu_mu with inclusive reconstruction at BaBar

The BaBar Collaboration

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    Abstract

    We search for the purely leptonic decay B±→μ±νμB±→μ±νμ in the full BaBar dataset, having an integrated luminosity of approximately 426 fb−1−1. We adopt a fully inclusive approach, where the signal candidate is identified by the highest momentum lepton in the event and the companion BB is inclusively reconstructed without trying to identify its decay products. We set a preliminary upper limit on the branching fraction of \BR(B±→μ±νμ)<1.3×10−6\BR(B±→μ±νμ)<1.3×10−6 at the 90% confidence level, using a Bayesian approach
    Original languageEnglish
    Title of host publicationProceedings, 34th International Conference on High Energy Physics
    Number of pages16
    Publication statusPublished - 2008
    Event34th International Conference on High Energy Physics - Philadelphia, United States
    Duration: 30 Jul 20085 Aug 2008

    Conference

    Conference34th International Conference on High Energy Physics
    Country/TerritoryUnited States
    CityPhiladelphia
    Period30/07/085/08/08

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