Study of the rare decays of B0s and B0 into muon pairs from data collected during the LHC Run 1 with the ATLAS detector

Abstract : A study of the decays B0→μ+μ− and B0s→μ+μ− has been performed using data corresponding to an integrated luminosity of 25 fb−1 of 7 TeV and 8 TeV proton--proton collisions collected with the ATLAS detector during the LHC Run 1. For B0, an upper limit on the branching fraction is set at B(B0→μ+μ−)<4.2×10−10 at 95% confidence level. For B0s, the branching fraction B(B0s→μ+μ−)=(0.9+1.1−0.8)×10−9 is measured. The results are consistent with the Standard Model expectation with a p-value of 4.8%, corresponding to 2.0 standard deviations.
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European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2016, 76, pp.513. 〈10.1140/epjc/s10052-016-4338-8〉
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http://hal.in2p3.fr/in2p3-01304245
Contributeur : Claudine Bombar <>
Soumis le : mardi 19 avril 2016 - 14:09:48
Dernière modification le : lundi 9 avril 2018 - 12:22:07

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M. Aaboud, Z. Barnovska, N. Berger, M. Delmastro, L. Di Ciaccio, et al.. Study of the rare decays of B0s and B0 into muon pairs from data collected during the LHC Run 1 with the ATLAS detector. European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2016, 76, pp.513. 〈10.1140/epjc/s10052-016-4338-8〉. 〈in2p3-01304245〉

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