Observation of electroweak production of Wγ with two jets in proton-proton collisions at √s = 13 TeV
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/218504 |
Resumo: | 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. |
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Sirunyan, A. M.Silveira, Gustavo Gil daCMS Collaboration2021-03-09T04:41:15Z20200370-2693http://hdl.handle.net/10183/218504001122233A 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.application/pdfengPhysics letters. B. Amsterdam. Vol. 811 (Dec. 2020), 135988, 27 p.Aceleradores de partículasColisões proton-protonBosons WCMSPhysicsVector boson scatteringObservation of electroweak production of Wγ with two jets in proton-proton collisions at √s = 13 TeVEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001122233.pdf.txt001122233.pdf.txtExtracted Texttext/plain110774http://www.lume.ufrgs.br/bitstream/10183/218504/2/001122233.pdf.txt71d03a98938d9262db3fa9b2eef84792MD52ORIGINAL001122233.pdfTexto completo (inglês)application/pdf1177741http://www.lume.ufrgs.br/bitstream/10183/218504/1/001122233.pdf823cca3aa1827b62a1deced774514cb7MD5110183/2185042023-08-04 03:33:21.91427oai:www.lume.ufrgs.br:10183/218504Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-08-04T06:33:21Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Observation of electroweak production of Wγ with two jets in proton-proton collisions at √s = 13 TeV |
title |
Observation of electroweak production of Wγ with two jets in proton-proton collisions at √s = 13 TeV |
spellingShingle |
Observation of electroweak production of Wγ with two jets in proton-proton collisions at √s = 13 TeV Sirunyan, A. M. Aceleradores de partículas Colisões proton-proton Bosons W CMS Physics Vector boson scattering |
title_short |
Observation of electroweak production of Wγ with two jets in proton-proton collisions at √s = 13 TeV |
title_full |
Observation of electroweak production of Wγ with two jets in proton-proton collisions at √s = 13 TeV |
title_fullStr |
Observation of electroweak production of Wγ with two jets in proton-proton collisions at √s = 13 TeV |
title_full_unstemmed |
Observation of electroweak production of Wγ with two jets in proton-proton collisions at √s = 13 TeV |
title_sort |
Observation of electroweak production of Wγ with two jets in proton-proton collisions at √s = 13 TeV |
author |
Sirunyan, A. M. |
author_facet |
Sirunyan, A. M. Silveira, Gustavo Gil da CMS Collaboration |
author_role |
author |
author2 |
Silveira, Gustavo Gil da CMS Collaboration |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Sirunyan, A. M. Silveira, Gustavo Gil da CMS Collaboration |
dc.subject.por.fl_str_mv |
Aceleradores de partículas Colisões proton-proton Bosons W |
topic |
Aceleradores de partículas Colisões proton-proton Bosons W CMS Physics Vector boson scattering |
dc.subject.eng.fl_str_mv |
CMS Physics Vector boson scattering |
description |
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. |
publishDate |
2020 |
dc.date.issued.fl_str_mv |
2020 |
dc.date.accessioned.fl_str_mv |
2021-03-09T04:41:15Z |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/218504 |
dc.identifier.issn.pt_BR.fl_str_mv |
0370-2693 |
dc.identifier.nrb.pt_BR.fl_str_mv |
001122233 |
identifier_str_mv |
0370-2693 001122233 |
url |
http://hdl.handle.net/10183/218504 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Physics letters. B. Amsterdam. Vol. 811 (Dec. 2020), 135988, 27 p. |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
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