Study of the rare decays of Bs0 and B0 into muon pairs from data collected during the LHC Run 1 with the ATLAS detector

M Aaboud; G Aad; B Abbott; J Abdallah; O Abdinov; B Abeloos; Torsten Åkesson; Simona Bocchetta; LENE Bryngemark; Caterina Doglioni; Anders Floderus; Vincent Hedberg; Göran Jarlskog; Else Lytken; Ulf Mjörnmark; Oxana Smirnova; Oleksandr Viazlo; ATLAS Collaboration

doi:10.1140/epjc/s10052-016-4338-8

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Study of the rare decays of Bs0 and B0 into muon pairs from data collected during the LHC Run 1 with the ATLAS detector

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Study of the rare decays of Bs0 and B0 into muon pairs from data collected during the LHC Run 1 with the ATLAS detector

M Aaboud, G Aad, B Abbott, J Abdallah, O Abdinov, B Abeloos, Torsten Åkesson, Simona Bocchetta, LENE Bryngemark, Caterina Doglioni, …

The European physical journal. C, Particles and fields, Vol.76(9), 513

2016

DOI: 10.1140/epjc/s10052-016-4338-8

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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. © 2016, CERN for the benefit of the ATLAS collaboration.

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Title: Subtitle: Study of the rare decays of Bs0 and B0 into muon pairs from data collected during the LHC Run 1 with the ATLAS detector
Creators: M Aaboud - Premier University
G Aad - Aix-Marseille Université
B Abbott - University of Oklahoma
J Abdallah - University of Iowa
O Abdinov - Azerbaijan National Academy of Sciences
B Abeloos - Université Paris-Saclay
Torsten Åkesson - Particle Physics
Simona Bocchetta - Particle Physics
LENE Bryngemark - Particle Physics
Caterina Doglioni - Particle Physics
Anders Floderus - Particle Physics
Vincent Hedberg - Particle Physics
Göran Jarlskog - Particle Physics
Else Lytken - Particle Physics
Ulf Mjörnmark - Particle Physics
Oxana Smirnova - Particle Physics
Oleksandr Viazlo - Particle Physics
ATLAS Collaboration
Contributors: U Mallik (Contributor) - University of Iowa, Physics and Astronomy
Resource Type: Journal article
Publication Details: The European physical journal. C, Particles and fields, Vol.76(9), 513
DOI: 10.1140/epjc/s10052-016-4338-8
NLM abbreviation: Eur Phys J C Part Fields
ISSN: 1434-6044
eISSN: 1434-6052
Publisher: Springer
Language: English
Date published: 2016
Academic Unit: Physics and Astronomy
Record Identifier: 9984199939502771

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