Study of the rare decays of $B^0_s$ and $B^0$ into muon pairs with the ATLAS detector

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A study of the decays $B^0_s \rightarrow \mu^+ \mu^-$ and $B^0 \rightarrow \mu^+ \mu^-$ 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 $B^0$ an upper limit...

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Autor principal: Palestini, Sandro
Lenguaje:eng
Publicado: 2016
Materias:
Particle Physics - Experiment
Acceso en línea:http://cds.cern.ch/record/2155542
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author Palestini, Sandro
author_facet Palestini, Sandro
author_sort Palestini, Sandro
collection CERN
description A study of the decays $B^0_s \rightarrow \mu^+ \mu^-$ and $B^0 \rightarrow \mu^+ \mu^-$ 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 $B^0$ an upper limit on the branching fraction is set at $B^0 \rightarrow \mu^+ \mu^- < 4.2 \times 10^{-10}$ at 95% confidence level. For $B^0_s$ the branching fraction $B^0_s \rightarrow \mu^+ \mu^- = (0.9^{+1.1}_{-0.8})\times 10^{-9}$ is measured. The results are consistent with the Standard Model expectation with a p-value of 4.8%, corresponding to 2.0 standard deviations.
id cern-2155542
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2016
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spelling cern-21555422019-09-30T06:29:59Zhttp://cds.cern.ch/record/2155542engPalestini, SandroStudy of the rare decays of $B^0_s$ and $B^0$ into muon pairs with the ATLAS detectorParticle Physics - ExperimentA study of the decays $B^0_s \rightarrow \mu^+ \mu^-$ and $B^0 \rightarrow \mu^+ \mu^-$ 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 $B^0$ an upper limit on the branching fraction is set at $B^0 \rightarrow \mu^+ \mu^- < 4.2 \times 10^{-10}$ at 95% confidence level. For $B^0_s$ the branching fraction $B^0_s \rightarrow \mu^+ \mu^- = (0.9^{+1.1}_{-0.8})\times 10^{-9}$ is measured. The results are consistent with the Standard Model expectation with a p-value of 4.8%, corresponding to 2.0 standard deviations.ATL-PHYS-PROC-2016-064oai:cds.cern.ch:21555422016-05-25
spellingShingle Particle Physics - Experiment
Palestini, Sandro
Study of the rare decays of $B^0_s$ and $B^0$ into muon pairs with the ATLAS detector
title Study of the rare decays of $B^0_s$ and $B^0$ into muon pairs with the ATLAS detector
title_full Study of the rare decays of $B^0_s$ and $B^0$ into muon pairs with the ATLAS detector
title_fullStr Study of the rare decays of $B^0_s$ and $B^0$ into muon pairs with the ATLAS detector
title_full_unstemmed Study of the rare decays of $B^0_s$ and $B^0$ into muon pairs with the ATLAS detector
title_short Study of the rare decays of $B^0_s$ and $B^0$ into muon pairs with the ATLAS detector
title_sort study of the rare decays of $b^0_s$ and $b^0$ into muon pairs with the atlas detector
topic Particle Physics - Experiment
url http://cds.cern.ch/record/2155542
work_keys_str_mv AT palestinisandro studyoftheraredecaysofb0sandb0intomuonpairswiththeatlasdetector

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