Improved limits on B-0 decays to invisible ( plus gamma) final states

J.P. Lees, H.G. Raven, Collaboration BARBAR

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We establish improved upper limits on branching fractions for B0 decays to final states where the decay products are purely invisible (i.e., no observable final state particles) and for final states where the only visible product is a photon. Within the Standard Model, these decays have branching fractions that are below the current experimental sensitivity, but various models of physics beyond the Standard Model predict significant contributions for these channels. Using 471×106 BB̄ pairs collected at the Υ(4S) resonance by the BABAR experiment at the PEP-II e
Original languageEnglish
Article number051105
JournalPhysical Review D
Issue number5
Publication statusPublished - 2012


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