Strong Constraints on the Rare Decays $B_{s}^{0} \to μ^{+} μ^{-}$ and $B^{0} \to μ^{+} μ^{-}$

Open Access

5 June 2012

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 108 (23) , 231801
https://doi.org/10.1103/physrevlett.108.231801

Abstract

A search for

B_{s}^{0} \to μ^{+} μ^{-}

and

B^{0} \to μ^{+} μ^{-}

decays is performed using

1.0 {fb}^{- 1}

p p

collision data collected at

\sqrt{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 (B_{s}^{0} \to μ^{+} μ^{-}) < 4.5 (3.8) \times 10^{- 9}

and

B (B^{0} \to μ^{+} μ^{-}) < 1.0 (0.81) \times 10^{- 9}

at 95% (90%) confidence level.

Keywords

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Funding Information

National Science Foundation

This publication has 14 references indexed in Scilit:

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Strong Constraints on the Rare DecaysBs0→μ+μ−andB0→μ+μ−

Abstract

Keywords

All Related Versions

Funding Information

Strong Constraints on the Rare Decays $B_{s}^{0} \to μ^{+} μ^{-}$ and $B^{0} \to μ^{+} μ^{-}$