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dc.contributor.authorTumasyan, Armenpt_BR
dc.contributor.authorSilveira, Gustavo Gil dapt_BR
dc.contributor.authorBernardes, César Augustopt_BR
dc.contributor.authorCMS Collaborationpt_BR
dc.date.accessioned2023-05-10T03:27:09Zpt_BR
dc.date.issued2022pt_BR
dc.identifier.issn0370-2693pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/257869pt_BR
dc.description.abstractEvidence is reported for electroweak (EW) vector boson scattering in the decay channel νqq of two weak vector bosons WV (V = W or Z), produced in association with two parton jets. The search uses a data set of proton-proton collisions at 13 TeV collected with the CMS detector during 2016–2018 with an integrated luminosity of 138 fb−1. Events are selected requiring one lepton (electron or muon), moderate missing transverse momentum, two jets with a large pseudorapidity separation and a large dijet invariant mass, and a signature consistent with the hadronic decay of a W/Z boson. The cross section is computed in a fiducial phase space defined at parton level requiring all parton transverse momenta pT > 10 GeV and at least one pair of outgoing partons with invariant mass mqq > 100 GeV. The measured and expected EW WV production cross sections are 1.90+0.53 −0.46 pb and 2.23+0.08 −0.11(scale) ± 0.05(PDF) pb, respectively, where PDF is the parton distribution function. The observed EW signal strength is μEW = 0.85 ± 0.12 (stat) +0.19 −0.17 (syst), corresponding to a signal significance of 4.4 standard deviations with 5.1 expected, and it is measured keeping the quantum chromodynamics (QCD) associated diboson production fixed to the standard model prediction. This is the first evidence of vector boson scattering in the νqq decay channel at LHC. The simultaneous measurement of the EW and QCD associated diboson production agrees with the standard model prediction.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofPhysics letters. B. Amsterdam. Vol. 834 (Nov. 2022), 137438, 28 p.pt_BR
dc.rightsOpen Accessen
dc.subjectCMSen
dc.subjectAceleradores de partículaspt_BR
dc.subjectColisões proton-protonpt_BR
dc.subjectVector boson scatteringen
dc.subjectBosonspt_BR
dc.titleEvidence for WW/WZ vector boson scattering in the decay channel ℓνqq produced in association with two jets in proton-proton collisions at √s = 13 TeVpt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb001162744pt_BR
dc.type.originEstrangeiropt_BR


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