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https://hdl.handle.net/10316/108555
Title: | Study of the rare decays of Bs0 and B0 into muon pairs from data collected during the LHC Run 1 with the ATLAS detector | Authors: | Santos, S. P. Amor dos Carvalho, J. Fiolhais, M. C. N. Galhardo, B. Veloso, F. Wolters, H. ATLAS Collaboration |
Issue Date: | 2016 | Publisher: | Springer Nature | Serial title, monograph or event: | European Physical Journal C | Volume: | 76 | Issue: | 9 | Abstract: | A study of the decays Bs0→μ+μ- and B0→ μ+μ- has been performed using data corresponding to an integrated luminosity of 25 fb- 1 of 7 and 8 TeV proton–proton collisions collected with the ATLAS detector during the LHC Run 1. For the B0 dimuon decay, an upper limit on the branching fraction is set at B(B0→ μ+μ-) < 4.2 × 10 - 10 at 95 % confidence level. For Bs0, the branching fraction B(Bs0→μ+μ-)=(0.9-0.8+1.1)×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. | URI: | https://hdl.handle.net/10316/108555 | DOI: | 10.1140/epjc/s10052-016-4338-8 | Rights: | openAccess |
Appears in Collections: | FCTUC Física - Artigos em Revistas Internacionais |
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Study-of-the-rare-decays-of-Bs0-and-Bsup0sup-into-muon-pairs-from-data-collected-during-the-LHC-Run-1-with-the-ATLAS-detectorEuropean-Physical-Journal-C.pdf | 3.02 MB | Adobe PDF | View/Open |
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