Combination of the ATLAS, CMS and LHCb results on the $B^0_{(s)} \to \mu^+ \mu^-$ decays
A combination of results on the rare $B^0_{s} \to \mu^+ \mu^-$ and $B^0 \to \mu^+ \mu^-$ decays from the ATLAS, CMS, and LHCb experiments using data collected at the Large Hadron Collider between 2011 and 2016, is presented. The $B^0_{s} \to \mu^+ \mu^-$ branching fraction is obtained to be $\le...
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Lenguaje: | eng |
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2020
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Acceso en línea: | http://cds.cern.ch/record/2727207 |
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author | The LHCb Collaboration |
author_facet | The LHCb Collaboration |
author_sort | The LHCb Collaboration |
collection | CERN |
description | A combination of results on the rare $B^0_{s} \to \mu^+ \mu^-$ and $B^0 \to \mu^+ \mu^-$ decays from the ATLAS, CMS, and LHCb experiments using data collected at the Large Hadron Collider between 2011 and 2016, is presented. The $B^0_{s} \to \mu^+ \mu^-$ branching fraction is obtained to be $\left( 2.69\,^{+\, 0.37}_{-\, 0.35} \right) \times 10^{-9}$ and the effective lifetime of the $B^0_{s} \to \mu^+ \mu^-$ decay is measured to be $\tau_{B^0_{s} \to \mu^+ \mu^-} = 1.91^{+0.37}_{-0.35} \rm{ps}$. An upper limit on the $B^0 \to \mu^+ \mu^-$ branching fraction is evaluated to be $\mathcal{B}(B^0 \to \mu^+ \mu^-) < 1.6~(1.9)\times 10^{-10}$ at 90% (95%) confidence level. An upper limit on the ratio of the $B^0 \to \mu^+ \mu^-$ and $B^0_{s} \to \mu^+ \mu^-$ branching fractions is obtained to be $0.052 (0.060)$ at 90% (95%) confidence level. |
id | cern-2727207 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2020 |
record_format | invenio |
spelling | cern-27272072020-08-07T00:48:41Zhttp://cds.cern.ch/record/2727207engThe LHCb CollaborationCombination of the ATLAS, CMS and LHCb results on the $B^0_{(s)} \to \mu^+ \mu^-$ decaysParticle Physics - ExperimentA combination of results on the rare $B^0_{s} \to \mu^+ \mu^-$ and $B^0 \to \mu^+ \mu^-$ decays from the ATLAS, CMS, and LHCb experiments using data collected at the Large Hadron Collider between 2011 and 2016, is presented. The $B^0_{s} \to \mu^+ \mu^-$ branching fraction is obtained to be $\left( 2.69\,^{+\, 0.37}_{-\, 0.35} \right) \times 10^{-9}$ and the effective lifetime of the $B^0_{s} \to \mu^+ \mu^-$ decay is measured to be $\tau_{B^0_{s} \to \mu^+ \mu^-} = 1.91^{+0.37}_{-0.35} \rm{ps}$. An upper limit on the $B^0 \to \mu^+ \mu^-$ branching fraction is evaluated to be $\mathcal{B}(B^0 \to \mu^+ \mu^-) < 1.6~(1.9)\times 10^{-10}$ at 90% (95%) confidence level. An upper limit on the ratio of the $B^0 \to \mu^+ \mu^-$ and $B^0_{s} \to \mu^+ \mu^-$ branching fractions is obtained to be $0.052 (0.060)$ at 90% (95%) confidence level.LHCb-CONF-2020-002CERN-LHCb-CONF-2020-002oai:cds.cern.ch:27272072020-08-06 |
spellingShingle | Particle Physics - Experiment The LHCb Collaboration Combination of the ATLAS, CMS and LHCb results on the $B^0_{(s)} \to \mu^+ \mu^-$ decays |
title | Combination of the ATLAS, CMS and LHCb results on the $B^0_{(s)} \to \mu^+ \mu^-$ decays |
title_full | Combination of the ATLAS, CMS and LHCb results on the $B^0_{(s)} \to \mu^+ \mu^-$ decays |
title_fullStr | Combination of the ATLAS, CMS and LHCb results on the $B^0_{(s)} \to \mu^+ \mu^-$ decays |
title_full_unstemmed | Combination of the ATLAS, CMS and LHCb results on the $B^0_{(s)} \to \mu^+ \mu^-$ decays |
title_short | Combination of the ATLAS, CMS and LHCb results on the $B^0_{(s)} \to \mu^+ \mu^-$ decays |
title_sort | combination of the atlas, cms and lhcb results on the $b^0_{(s)} \to \mu^+ \mu^-$ decays |
topic | Particle Physics - Experiment |
url | http://cds.cern.ch/record/2727207 |
work_keys_str_mv | AT thelhcbcollaboration combinationoftheatlascmsandlhcbresultsontheb0stomumudecays |