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dc.contributor.authorCMS Collaboration
dc.date.accessioned2022-09-01T14:41:13Z
dc.date.available2022-09-01T14:41:13Z
dc.date.issued2020-09-10
dc.identifier.citationSirunyan, A.M.; Measurement of the Y(1S) pair production cross section and search for resonances decaying to Y(1S)μ+μ− in proton-proton collisions at √s = 13 TeVen_US
dc.identifier.urihttp://hdl.handle.net/1808/33398
dc.description.abstractThe fiducial cross section for Y(1S) pair production in proton-proton collisions at a center-of-mass energy of 13 TeV in the region where both Y(1S) mesons have an absolute rapidity below 2.0 is measured to be 79 ± 11 (stat) ± 6 (syst) ± 3 (B) pb assuming the mesons are produced unpolarized. The last uncertainty corresponds to the uncertainty in the Y(1S) meson dimuon branching fraction. The measurement is performed in the final state with four muons using proton-proton collision data collected in 2016 by the CMS experiment at the LHC, corresponding to an integrated luminosity of 35.9 fb−1. This process serves as a standard model reference in a search for narrow resonances decaying to Y(1S)μ+μ− in the same final state. Such a resonance could indicate the existence of a tetraquark that is a bound state of two b quarks and two b antiquarks. ¯ The tetraquark search is performed for masses in the vicinity of four times the bottom quark mass, between 17.5 and 19.5 GeV, while a generic search for other resonances is performed for masses between 16.5 and 27 GeV. No significant excess of events compatible with a narrow resonance is observed in the data. Limits on the production cross section times branching fraction to four muons via an intermediate Y(1S) resonance are set as a function of the resonance mass.en_US
dc.publisherElsevieren_US
dc.rightsCopyright © 1969, Elsevier. This is an open access article distributed under the terms of the Creative Commons CC-BY license.en_US
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en_US
dc.subjectCMSen_US
dc.subjectUpsilonen_US
dc.titleMeasurement of the Y(1S) pair production cross section and search for resonances decaying to Y(1S)μ+μ− in proton-proton collisions at √s = 13 TeVen_US
dc.typeArticleen_US
kusw.kuauthorBean, Alice Louise
kusw.kudepartmentPhysics & Astronomyen_US
kusw.oanotesPer Sherpa Romeo 09/01/2022:

Physics Letters B [Open panel below]Publication Information TitlePhysics Letters B [English] ISSNs Print: 0370-2693 Electronic: 1873-2445 URLhttps://www.journals.elsevier.com/physics-letters-b/ Publishers Elsevier [Commercial Publisher] North-Holland [Associate Organisation] DOAJ Listinghttps://doaj.org/toc/0370-2693 Requires APCNo [Data provided by DOAJ] [Open panel below]Publisher Policy Open Access pathways permitted by this journal's policy are listed below by article version. Click on a pathway for a more detailed view.

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NoneCC BY Institutional Repository, Preprint Repository, Author's Homepage EmbargoNo Embargo LicenceCC BY Copyright OwnerAuthors Location Author's Homepage Institutional Repository Preprint Repository ConditionsPublished source must be acknowledged with citation
en_US
dc.identifier.doi10.1016/j.physletb.2020.135578en_US
kusw.oaversionScholarly/refereed, publisher versionen_US
kusw.oapolicyThis item meets KU Open Access policy criteria.en_US
kusw.proidID210479802368en_US
dc.rights.accessrightsopenAccessen_US


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Copyright © 1969, Elsevier. This is an open access article distributed under the terms of the Creative Commons CC-BY license.
Except where otherwise noted, this item's license is described as: Copyright © 1969, Elsevier. This is an open access article distributed under the terms of the Creative Commons CC-BY license.