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Search for the decay B-s(0) -> mu(+)mu(-) with the ATLAS detector

Aad, G.; Abbott, B.; Abdallah, J.; Khalek, S. Abdel; Abdelalim, A. A.; Abdinov, O.; Abi, B.; Abolins, M.; AbouZeid, O. S. and Abramowicz, H., et al. (2012) In Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics 713(4-5). p.387-407
Abstract
A blind analysis searching for the decay B-s(0) -> mu(+)mu(-) has been performed using proton-proton collisions at a centre-of-mass energy of 7 TeV recorded with the ATLAS detector at the LHC. With an integrated luminosity of 2.4 fb(-1) no excess of events over the background expectation is found and an upper limit is set on the branching fraction BR(B-s(0) -> mu(+)mu(-)) <2.2(1.9) x 10(-8) at 95% (90%) confidence level. (C) 2012 CERN. Published by Elsevier B.V. All rights reserved.
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