Evidence for WW production from double-parton interactions in proton–proton collisions at √s = 13 TeV

Detalhes bibliográficos
Autor(a) principal: Sirunyan, A. M.
Data de Publicação: 2020
Outros Autores: Silveira, Gustavo Gil da, CMS Collaboration
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/211706
Resumo: A search for WW production from double-parton scattering processes using same-charge electron-muon and dimuon events is reported, based on proton-proton collision data collected at a center-of-mass energy of 13TeV. The analyzed data set corresponds to an integrated luminosity of 77.4fb−1, collected using the CMS detector at the LHC in 2016 and 2017. Multivariate classifiers are used to discriminate between the signal and the dominant background processes. A maximum likelihood fit is performed to extract the signal cross section. This leads to the first evidence for WW production via double-parton scattering, with a significance of 3.9 standard deviations. The measured inclusive cross section is 1.41±0.28(stat)±0.28(syst)pb.
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spelling Sirunyan, A. M.Silveira, Gustavo Gil daCMS Collaboration2020-07-10T03:42:06Z20201434-6044http://hdl.handle.net/10183/211706001115107A search for WW production from double-parton scattering processes using same-charge electron-muon and dimuon events is reported, based on proton-proton collision data collected at a center-of-mass energy of 13TeV. The analyzed data set corresponds to an integrated luminosity of 77.4fb−1, collected using the CMS detector at the LHC in 2016 and 2017. Multivariate classifiers are used to discriminate between the signal and the dominant background processes. A maximum likelihood fit is performed to extract the signal cross section. This leads to the first evidence for WW production via double-parton scattering, with a significance of 3.9 standard deviations. The measured inclusive cross section is 1.41±0.28(stat)±0.28(syst)pb.application/pdfengThe European physical journal. C, Particles and fields. Berlin. Vol. 80, no. 1 (Jan. 2020), 041, 26 p.Aceleradores de partículasColisões proton-protonBosons WEvidence for WW production from double-parton interactions 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:UFRGSTEXT001115107.pdf.txt001115107.pdf.txtExtracted Texttext/plain109851http://www.lume.ufrgs.br/bitstream/10183/211706/2/001115107.pdf.txtd8f6c1be8f17816392074f4751d1455eMD52ORIGINAL001115107.pdfTexto completo (inglês)application/pdf703508http://www.lume.ufrgs.br/bitstream/10183/211706/1/001115107.pdff717254215ad610782b0fd62bfcf7f43MD5110183/2117062023-08-03 03:34:20.503693oai:www.lume.ufrgs.br:10183/211706Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-08-03T06:34:20Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Evidence for WW production from double-parton interactions in proton–proton collisions at √s = 13 TeV
title Evidence for WW production from double-parton interactions in proton–proton collisions at √s = 13 TeV
spellingShingle Evidence for WW production from double-parton interactions in proton–proton collisions at √s = 13 TeV
Sirunyan, A. M.
Aceleradores de partículas
Colisões proton-proton
Bosons W
title_short Evidence for WW production from double-parton interactions in proton–proton collisions at √s = 13 TeV
title_full Evidence for WW production from double-parton interactions in proton–proton collisions at √s = 13 TeV
title_fullStr Evidence for WW production from double-parton interactions in proton–proton collisions at √s = 13 TeV
title_full_unstemmed Evidence for WW production from double-parton interactions in proton–proton collisions at √s = 13 TeV
title_sort Evidence for WW production from double-parton interactions 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
description A search for WW production from double-parton scattering processes using same-charge electron-muon and dimuon events is reported, based on proton-proton collision data collected at a center-of-mass energy of 13TeV. The analyzed data set corresponds to an integrated luminosity of 77.4fb−1, collected using the CMS detector at the LHC in 2016 and 2017. Multivariate classifiers are used to discriminate between the signal and the dominant background processes. A maximum likelihood fit is performed to extract the signal cross section. This leads to the first evidence for WW production via double-parton scattering, with a significance of 3.9 standard deviations. The measured inclusive cross section is 1.41±0.28(stat)±0.28(syst)pb.
publishDate 2020
dc.date.accessioned.fl_str_mv 2020-07-10T03:42:06Z
dc.date.issued.fl_str_mv 2020
dc.type.driver.fl_str_mv Estrangeiro
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dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/211706
dc.identifier.issn.pt_BR.fl_str_mv 1434-6044
dc.identifier.nrb.pt_BR.fl_str_mv 001115107
identifier_str_mv 1434-6044
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dc.language.iso.fl_str_mv eng
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dc.relation.ispartof.pt_BR.fl_str_mv The European physical journal. C, Particles and fields. Berlin. Vol. 80, no. 1 (Jan. 2020), 041, 26 p.
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institution UFRGS
reponame_str Repositório Institucional da UFRGS
collection Repositório Institucional da UFRGS
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