Search for low mass vector resonances decaying into quark-antiquark pairs in proton-proton collisions at √s=13 TeV
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/206161 |
Resumo: | A search for low mass narrow vector resonances decaying into quark-antiquark pairs is presented. The analysis is based on data collected in 2017 with the CMS detector at the LHC in proton-proton collisions at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 41.1 fb−1. The results of this analysis are combined with those of an earlier analysis based on data collected at the same collision energy in 2016, corresponding to 35.9 fb−1. Signal candidates will be recoiling against initial state radiation and are identified as energetic, large-radius jets with two pronged substructure. The invariant jet mass spectrum is probed for a potential narrow peaking signal over a smoothly falling background. No evidence for such resonances is observed within the mass range of 50–450 GeV. Upper limits at the 95% confidence level are set on the coupling of narrow resonances to quarks, as a function of the resonance mass. For masses between 50 and 300 GeV these are the most sensitive limits to date. This analysis extends the earlier search to a mass range of 300–450 GeV, which is probed for the first time with jet substructure techniques. |
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Sirunyan, A. M.Silveira, Gustavo Gil daCMS Collaboration2020-02-22T04:18:30Z20191550-7998http://hdl.handle.net/10183/206161001112432A search for low mass narrow vector resonances decaying into quark-antiquark pairs is presented. The analysis is based on data collected in 2017 with the CMS detector at the LHC in proton-proton collisions at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 41.1 fb−1. The results of this analysis are combined with those of an earlier analysis based on data collected at the same collision energy in 2016, corresponding to 35.9 fb−1. Signal candidates will be recoiling against initial state radiation and are identified as energetic, large-radius jets with two pronged substructure. The invariant jet mass spectrum is probed for a potential narrow peaking signal over a smoothly falling background. No evidence for such resonances is observed within the mass range of 50–450 GeV. Upper limits at the 95% confidence level are set on the coupling of narrow resonances to quarks, as a function of the resonance mass. For masses between 50 and 300 GeV these are the most sensitive limits to date. This analysis extends the earlier search to a mass range of 300–450 GeV, which is probed for the first time with jet substructure techniques.application/pdfengPhysical review. D, Particles, fields, gravitation, and cosmology. College Park. Vol. 100, no. 11 (Dec. 2019), 112007, 24 p.Aceleradores de partículasColisões proton-protonCromodinâmica quânticaSearch for low mass vector resonances decaying into quark-antiquark pairs 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:UFRGSTEXT001112432.pdf.txt001112432.pdf.txtExtracted Texttext/plain112904http://www.lume.ufrgs.br/bitstream/10183/206161/2/001112432.pdf.txtd29cfa8317cdd3ca3505471a1ae42f5cMD52ORIGINAL001112432.pdfTexto completo (inglês)application/pdf1880704http://www.lume.ufrgs.br/bitstream/10183/206161/1/001112432.pdf773446007fea70d8879179788acfdfedMD5110183/2061612023-08-05 03:37:35.985815oai:www.lume.ufrgs.br:10183/206161Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-08-05T06:37:35Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Search for low mass vector resonances decaying into quark-antiquark pairs in proton-proton collisions at √s=13 TeV |
title |
Search for low mass vector resonances decaying into quark-antiquark pairs in proton-proton collisions at √s=13 TeV |
spellingShingle |
Search for low mass vector resonances decaying into quark-antiquark pairs in proton-proton collisions at √s=13 TeV Sirunyan, A. M. Aceleradores de partículas Colisões proton-proton Cromodinâmica quântica |
title_short |
Search for low mass vector resonances decaying into quark-antiquark pairs in proton-proton collisions at √s=13 TeV |
title_full |
Search for low mass vector resonances decaying into quark-antiquark pairs in proton-proton collisions at √s=13 TeV |
title_fullStr |
Search for low mass vector resonances decaying into quark-antiquark pairs in proton-proton collisions at √s=13 TeV |
title_full_unstemmed |
Search for low mass vector resonances decaying into quark-antiquark pairs in proton-proton collisions at √s=13 TeV |
title_sort |
Search for low mass vector resonances decaying into quark-antiquark pairs 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 Cromodinâmica quântica |
topic |
Aceleradores de partículas Colisões proton-proton Cromodinâmica quântica |
description |
A search for low mass narrow vector resonances decaying into quark-antiquark pairs is presented. The analysis is based on data collected in 2017 with the CMS detector at the LHC in proton-proton collisions at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 41.1 fb−1. The results of this analysis are combined with those of an earlier analysis based on data collected at the same collision energy in 2016, corresponding to 35.9 fb−1. Signal candidates will be recoiling against initial state radiation and are identified as energetic, large-radius jets with two pronged substructure. The invariant jet mass spectrum is probed for a potential narrow peaking signal over a smoothly falling background. No evidence for such resonances is observed within the mass range of 50–450 GeV. Upper limits at the 95% confidence level are set on the coupling of narrow resonances to quarks, as a function of the resonance mass. For masses between 50 and 300 GeV these are the most sensitive limits to date. This analysis extends the earlier search to a mass range of 300–450 GeV, which is probed for the first time with jet substructure techniques. |
publishDate |
2019 |
dc.date.issued.fl_str_mv |
2019 |
dc.date.accessioned.fl_str_mv |
2020-02-22T04:18:30Z |
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/10183/206161 |
dc.identifier.issn.pt_BR.fl_str_mv |
1550-7998 |
dc.identifier.nrb.pt_BR.fl_str_mv |
001112432 |
identifier_str_mv |
1550-7998 001112432 |
url |
http://hdl.handle.net/10183/206161 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Physical review. D, Particles, fields, gravitation, and cosmology. College Park. Vol. 100, no. 11 (Dec. 2019), 112007, 24 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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