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Strong Constraints on the Rare Decays Bs0→μ+μ- and B0→μ+μ-

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    Rights statement: Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. © 2012 CERN, for the LHCb Collaboration

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Original languageEnglish
Article number231801
Number of pages8
JournalPhysical Review Letters
Volume108
Issue number23
DOIs
StatePublished - 8 Jun 2012

Abstract

A search for Bs0→μ+μ- and B0→μ+μ- decays is performed using 1.0  fb-1 of pp collision data collected at √s=7  TeV with the LHCb experiment at the Large Hadron Collider. For both decays, the number of observed events is consistent with expectation from background and standard model signal predictions. Upper limits on the branching fractions are determined to be B(Bs0→μ+μ-)<4.5(3.8)×10-9 and B(B0→μ+μ-)<1.0(0.81)×10-9 at 95% (90%) confidence level.

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