Search for long-lived particles decaying into muon pairs in proton-proton collisions at s√ = 13 TeV collected with a dedicated high-rate data stream

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dc.citation.articleNumber62
dc.citation.journalTitleJournal of High Energy Physics
dc.citation.volumeNumber2022
dc.contributor.authorThe CMS collaboration
dc.date.accessioned2022-04-28T14:28:55Z
dc.date.available2022-04-28T14:28:55Z
dc.date.issued2022
dc.description.abstractA search for long-lived particles decaying into muon pairs is performed using proton-proton collisions at a center-of-mass energy of 13 TeV, collected by the CMS experiment at the LHC in 2017 and 2018, corresponding to an integrated luminosity of 101 fb−1. The data sets used in this search were collected with a dedicated dimuon trigger stream with low transverse momentum thresholds, recorded at high rate by retaining a reduced amount of information, in order to explore otherwise inaccessible phase space at low dimuon mass and nonzero displacement from the primary interaction vertex. No significant excess of events beyond the standard model expectation is found. Upper limits on branching fractions at 95% confidence level are set on a wide range of mass and lifetime hypotheses in beyond the standard model frameworks with the Higgs boson decaying into a pair of long-lived dark photons, or with a long-lived scalar resonance arising from a decay of a b hadron. The limits are the most stringent to date for substantial regions of the parameter space. These results can be also used to constrain models of displaced dimuons that are not explicitly considered in this paper.
dc.identifier.citationThe CMS collaboration. "Search for long-lived particles decaying into muon pairs in proton-proton collisions at s√ = 13 TeV collected with a dedicated high-rate data stream." <i>Journal of High Energy Physics,</i> 2022, (2022) Springer Nature: https://doi.org/10.1007/JHEP04(2022)062.
dc.identifier.digitalSearchForLong-livedParticlesDe
dc.identifier.doihttps://doi.org/10.1007/JHEP04(2022)062
dc.identifier.urihttps://hdl.handle.net/1911/112176
dc.language.isoeng
dc.publisherSpringer Nature
dc.rightsThis article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleSearch for long-lived particles decaying into muon pairs in proton-proton collisions at s√ = 13 TeV collected with a dedicated high-rate data stream
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
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