Search for resonant and nonresonant production of pairs of dijet resonances in proton-proton collisions at √s = 13 TeV
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/270328 |
Resumo: | A search for pairs of dijet resonances with the same mass is conducted in final states with at least four jets. Results are presented separately for the case where the four jet production proceeds via an intermediate resonant state and for nonresonant production. The search uses a data sample corresponding to an integrated luminosity of 138 fb−1 collected by the CMS detector in proton-proton collisions at √ s = 13 TeV. Modelindependent limits, at 95% confidence level, are reported on the production cross section of four-jet and dijet resonances. These first LHC limits on resonant pair production of dijet resonances via high mass intermediate states are applied to a signal model of diquarks that decay into pairs of vector-like quarks, excluding diquark masses below 7.6 TeV for a particular model scenario. There are two events in the tails of the distributions, each with a four-jet mass of 8 TeV and an average dijet mass of 2 TeV, resulting in local and global significances of 3.9 and 1.6 standard deviations, respectively, if interpreted as a signal. The nonresonant search excludes pair production of top squarks with masses between 0.50 TeV to 0.77 TeV, with the exception of a small interval between 0.52 and 0.58 TeV, for supersymmetric R-parity-violating decays to quark pairs, significantly extending previous limits. Here, the most significant excess above the predicted background occurs at an average dijet mass of 0.95 TeV, for which the local and global significances are 3.6 and 2.5 standard deviations, respectively. |
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Tumasyan, ArmenSilveira, Gustavo Gil daBernardes, César AugustoCMS Collaboration2023-12-19T03:24:10Z20231029-8479http://hdl.handle.net/10183/270328001186774A search for pairs of dijet resonances with the same mass is conducted in final states with at least four jets. Results are presented separately for the case where the four jet production proceeds via an intermediate resonant state and for nonresonant production. The search uses a data sample corresponding to an integrated luminosity of 138 fb−1 collected by the CMS detector in proton-proton collisions at √ s = 13 TeV. Modelindependent limits, at 95% confidence level, are reported on the production cross section of four-jet and dijet resonances. These first LHC limits on resonant pair production of dijet resonances via high mass intermediate states are applied to a signal model of diquarks that decay into pairs of vector-like quarks, excluding diquark masses below 7.6 TeV for a particular model scenario. There are two events in the tails of the distributions, each with a four-jet mass of 8 TeV and an average dijet mass of 2 TeV, resulting in local and global significances of 3.9 and 1.6 standard deviations, respectively, if interpreted as a signal. The nonresonant search excludes pair production of top squarks with masses between 0.50 TeV to 0.77 TeV, with the exception of a small interval between 0.52 and 0.58 TeV, for supersymmetric R-parity-violating decays to quark pairs, significantly extending previous limits. Here, the most significant excess above the predicted background occurs at an average dijet mass of 0.95 TeV, for which the local and global significances are 3.6 and 2.5 standard deviations, respectively.application/pdfengThe journal of high energy physics. Trieste. No. 7 (July 2023), 161, 50 p.Aceleradores de partículasHadronsColisões proton-protonHadron-Hadron scatteringBeyond Standard ModelJet PhysicsSearch for resonant and nonresonant production of pairs of dijet resonances 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:UFRGSTEXT001186774.pdf.txt001186774.pdf.txtExtracted Texttext/plain123538http://www.lume.ufrgs.br/bitstream/10183/270328/2/001186774.pdf.txt4cbde56bb37692c4747530ae235a8f7bMD52ORIGINAL001186774.pdfTexto completo (inglês)application/pdf2383250http://www.lume.ufrgs.br/bitstream/10183/270328/1/001186774.pdfac4377ffadeed660e6390db10f666c85MD5110183/2703282023-12-20 04:21:31.16323oai:www.lume.ufrgs.br:10183/270328Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-12-20T06:21:31Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Search for resonant and nonresonant production of pairs of dijet resonances in proton-proton collisions at √s = 13 TeV |
title |
Search for resonant and nonresonant production of pairs of dijet resonances in proton-proton collisions at √s = 13 TeV |
spellingShingle |
Search for resonant and nonresonant production of pairs of dijet resonances in proton-proton collisions at √s = 13 TeV Tumasyan, Armen Aceleradores de partículas Hadrons Colisões proton-proton Hadron-Hadron scattering Beyond Standard Model Jet Physics |
title_short |
Search for resonant and nonresonant production of pairs of dijet resonances in proton-proton collisions at √s = 13 TeV |
title_full |
Search for resonant and nonresonant production of pairs of dijet resonances in proton-proton collisions at √s = 13 TeV |
title_fullStr |
Search for resonant and nonresonant production of pairs of dijet resonances in proton-proton collisions at √s = 13 TeV |
title_full_unstemmed |
Search for resonant and nonresonant production of pairs of dijet resonances in proton-proton collisions at √s = 13 TeV |
title_sort |
Search for resonant and nonresonant production of pairs of dijet resonances in proton-proton collisions at √s = 13 TeV |
author |
Tumasyan, Armen |
author_facet |
Tumasyan, Armen Silveira, Gustavo Gil da Bernardes, César Augusto CMS Collaboration |
author_role |
author |
author2 |
Silveira, Gustavo Gil da Bernardes, César Augusto CMS Collaboration |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Tumasyan, Armen Silveira, Gustavo Gil da Bernardes, César Augusto CMS Collaboration |
dc.subject.por.fl_str_mv |
Aceleradores de partículas Hadrons Colisões proton-proton |
topic |
Aceleradores de partículas Hadrons Colisões proton-proton Hadron-Hadron scattering Beyond Standard Model Jet Physics |
dc.subject.eng.fl_str_mv |
Hadron-Hadron scattering Beyond Standard Model Jet Physics |
description |
A search for pairs of dijet resonances with the same mass is conducted in final states with at least four jets. Results are presented separately for the case where the four jet production proceeds via an intermediate resonant state and for nonresonant production. The search uses a data sample corresponding to an integrated luminosity of 138 fb−1 collected by the CMS detector in proton-proton collisions at √ s = 13 TeV. Modelindependent limits, at 95% confidence level, are reported on the production cross section of four-jet and dijet resonances. These first LHC limits on resonant pair production of dijet resonances via high mass intermediate states are applied to a signal model of diquarks that decay into pairs of vector-like quarks, excluding diquark masses below 7.6 TeV for a particular model scenario. There are two events in the tails of the distributions, each with a four-jet mass of 8 TeV and an average dijet mass of 2 TeV, resulting in local and global significances of 3.9 and 1.6 standard deviations, respectively, if interpreted as a signal. The nonresonant search excludes pair production of top squarks with masses between 0.50 TeV to 0.77 TeV, with the exception of a small interval between 0.52 and 0.58 TeV, for supersymmetric R-parity-violating decays to quark pairs, significantly extending previous limits. Here, the most significant excess above the predicted background occurs at an average dijet mass of 0.95 TeV, for which the local and global significances are 3.6 and 2.5 standard deviations, respectively. |
publishDate |
2023 |
dc.date.accessioned.fl_str_mv |
2023-12-19T03:24:10Z |
dc.date.issued.fl_str_mv |
2023 |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
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http://hdl.handle.net/10183/270328 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
The journal of high energy physics. Trieste. No. 7 (July 2023), 161, 50 p. |
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info:eu-repo/semantics/openAccess |
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openAccess |
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