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dc.contributor.authorSirunyan, A. M.pt_BR
dc.contributor.authorSilveira, Gustavo Gil dapt_BR
dc.contributor.authorCMS Collaborationpt_BR
dc.date.accessioned2018-11-22T02:49:08Zpt_BR
dc.date.issued2018pt_BR
dc.identifier.issn1550-7998pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/184930pt_BR
dc.description.abstractThe results of a previous search by the CMS Collaboration for squarks and gluinos are reinterpreted to constrain models of leptoquark (LQ) production. The search considers jets in association with a transverse momentum ffiffiffi imbalance, using the MT2 variable. The analysis uses proton-proton collision data at s p ¼ 13 TeV, recorded with the CMS detector at the LHC in 2016 and corresponding to an integrated luminosity of 35.9 fb−1. Leptoquark pair production is considered with LQ decays to a neutrino and a top, bottom, or light quark. This reinterpretation considers higher mass values than the original CMS search to constrain both scalar and vector LQs. Limits on the cross section for LQ pair production are derived at the 95% confidence level depending on the LQ decay mode. A vector LQ decaying with a 50% branching fraction to tν, and 50% to bτ, has been proposed as part of an explanation of anomalous flavor physics results. In such a model, using only the decays to tν, LQ masses below 1530 GeVare excluded assuming the Yang-Mills case with coupling κ ¼ 1, or 1115 GeV in the minimal coupling case κ ¼ 0, placing the most stringent constraint to date from pair production of vector LQs.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofPhysical review. D, Particles, fields, gravitation, and cosmology. College Park. Vol. 98, no. 3 (Aug. 2018), 032005, 20 p.pt_BR
dc.rightsOpen Accessen
dc.subjectColisões proton-protonpt_BR
dc.subjectAceleradores de partículaspt_BR
dc.subjectLeptonspt_BR
dc.subjectQuarkspt_BR
dc.titleConstraints on models of scalar and vector leptoquarks decaying to a quark and a neutrino at √s = 13 TeVpt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb001080812pt_BR
dc.type.originEstrangeiropt_BR


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