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Study of the rare decays of B 0 s Bs0 and B 0 B0 into muon pairs from data collected during the LHC Run 1 with the ATLAS detector

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posted on 2023-06-09, 03:42 authored by Benedict AllbrookeBenedict Allbrooke, Lily AsquithLily Asquith, Alessandro CerriAlessandro Cerri, C A Chavez Barajas, Antonella De SantoAntonella De Santo, C T Potter, Fabrizio SalvatoreFabrizio Salvatore, I Santoyo Castillo, K Suruliz, Mark SuttonMark Sutton, Iacopo Vivarelli, et al The Atlas Collaboration
A study of the decays B 0 s ?µ + µ - Bs0?µ+µ- and B 0 ?µ + µ - B0?µ+µ- has been performed using data corresponding to an integrated luminosity of 25 fb -1 -1 of 7 and 8 TeV proton–proton collisions collected with the ATLAS detector during the LHC Run 1. For the B 0 B0 dimuon decay, an upper limit on the branching fraction is set at B(B 0 ?µ + µ - )<4.2×10 -10 B(B0?µ+µ-)<4.2×10-10 at 95 % confidence level. For B 0 s Bs0, the branching fraction B(B 0 s ?µ + µ - )=(0.9 +1.1 -0.8 )×10 -9 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.

History

Publication status

  • Published

File Version

  • Published version

Journal

European Physical Journal C: Particles and Fields

ISSN

1434-6044

Publisher

EDP Sciences

Volume

76

Page range

513

Department affiliated with

  • Physics and Astronomy Publications

Research groups affiliated with

  • Experimental Particle Physics Research Group Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2016-10-25

First Open Access (FOA) Date

2016-10-25

First Compliant Deposit (FCD) Date

2016-10-24

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