Observation of electroweak production of Wγ with two jets in proton-proton collisions at √s = 13 TeV
dc.contributor.author | Sirunyan, A. M. | pt_BR |
dc.contributor.author | Silveira, Gustavo Gil da | pt_BR |
dc.contributor.author | CMS Collaboration | pt_BR |
dc.date.accessioned | 2021-03-09T04:41:15Z | pt_BR |
dc.date.issued | 2020 | pt_BR |
dc.identifier.issn | 0370-2693 | pt_BR |
dc.identifier.uri | http://hdl.handle.net/10183/218504 | pt_BR |
dc.description.abstract | A first observation is presented for the electroweak production of a W boson, a photon, and two jets in proton-proton collisions. The W boson decays are selected by requiring one identified electron or muon and an imbalance in transverse momentum. The two jets are required to have a high dijet mass and a large separation in pseudorapidity. The measurement is based on data collected with the CMS detector at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 35.9 fb−1.The observed (expected) significance for this process is 4.9 (4.6) standard deviations. After combining with previously reported CMS results at 8 TeV, the observed (expected) significance is 5.3 (4.8) standard deviations. The cross section for the electroweak Wyjj production in a restricted fiducial region is measured as 20.4±4.5 fb and the total cross section for Wγ production in association with 2 jets in the same fiducial region is 108±16 fb. All resultsare ingood agreement with recent theoretical predictions. Constraints are placed on anomalous quartic gauge couplings in terms of dimension-8 effective field theory operators. | en |
dc.format.mimetype | application/pdf | pt_BR |
dc.language.iso | eng | pt_BR |
dc.relation.ispartof | Physics letters. B. Amsterdam. Vol. 811 (Dec. 2020), 135988, 27 p. | pt_BR |
dc.rights | Open Access | en |
dc.subject | CMS | en |
dc.subject | Aceleradores de partículas | pt_BR |
dc.subject | Colisões proton-proton | pt_BR |
dc.subject | Physics | en |
dc.subject | Bosons W | pt_BR |
dc.subject | Vector boson scattering | en |
dc.title | Observation of electroweak production of Wγ with two jets in proton-proton collisions at √s = 13 TeV | pt_BR |
dc.type | Artigo de periódico | pt_BR |
dc.identifier.nrb | 001122233 | pt_BR |
dc.type.origin | Estrangeiro | pt_BR |
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