Search for low-mass quark-antiquark resonances produced in association with a photon 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/10183/204143 |
Resumo: | A search for narrow low-mass resonances decaying to quark-antiquark pairs is presented. The search is based on proton-proton collision events collected at 13 TeV by the CMS detector at the CERN LHC. The data sample corresponds to an integrated luminosity of 35.9 fb−1, recorded in 2016. The search considers the case where the resonance has high transverse momentum due to initial-state radiation of a hard photon. To study this process, the decay products of the resonance are reconstructed as a single large-radius jet with two-pronged substructure. The signal would be identified as a localized excess in the jet invariant mass spectrum. No evidence for such a resonance is observed in the mass range 10 to 125 GeV. Upper limits at the 95% confidence level are set on the coupling strength of resonances decaying to quark pairs. The results obtained with this photon trigger strategy provide the first direct constraints on quark-antiquark resonance masses below 50 GeV obtained at a hadron collider. |
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Sirunyan, A. M.Silveira, Gustavo Gil daCMS Collaboration2020-01-14T04:15:48Z20190031-9007http://hdl.handle.net/10183/204143001109567A search for narrow low-mass resonances decaying to quark-antiquark pairs is presented. The search is based on proton-proton collision events collected at 13 TeV by the CMS detector at the CERN LHC. The data sample corresponds to an integrated luminosity of 35.9 fb−1, recorded in 2016. The search considers the case where the resonance has high transverse momentum due to initial-state radiation of a hard photon. To study this process, the decay products of the resonance are reconstructed as a single large-radius jet with two-pronged substructure. The signal would be identified as a localized excess in the jet invariant mass spectrum. No evidence for such a resonance is observed in the mass range 10 to 125 GeV. Upper limits at the 95% confidence level are set on the coupling strength of resonances decaying to quark pairs. The results obtained with this photon trigger strategy provide the first direct constraints on quark-antiquark resonance masses below 50 GeV obtained at a hadron collider.application/pdfengPhysical review letters. Melville. Vol. 123, no. 23 (Dec. 2019), 231803, 17 p.Aceleradores de partículasQuarksColisões proton-protonSearch for low-mass quark-antiquark resonances produced in association with a photon 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:UFRGSTEXT001109567.pdf.txt001109567.pdf.txtExtracted Texttext/plain86883http://www.lume.ufrgs.br/bitstream/10183/204143/2/001109567.pdf.txt3a9cabccb9dc83ec254bbfeae1d145c8MD52ORIGINAL001109567.pdfTexto completo (inglês)application/pdf453928http://www.lume.ufrgs.br/bitstream/10183/204143/1/001109567.pdf7e66a6363dee7248438a5a191e5669ddMD5110183/2041432023-08-05 03:40:15.483257oai:www.lume.ufrgs.br:10183/204143Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-08-05T06:40:15Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Search for low-mass quark-antiquark resonances produced in association with a photon at √ s = 13 TeV |
title |
Search for low-mass quark-antiquark resonances produced in association with a photon at √ s = 13 TeV |
spellingShingle |
Search for low-mass quark-antiquark resonances produced in association with a photon at √ s = 13 TeV Sirunyan, A. M. Aceleradores de partículas Quarks Colisões proton-proton |
title_short |
Search for low-mass quark-antiquark resonances produced in association with a photon at √ s = 13 TeV |
title_full |
Search for low-mass quark-antiquark resonances produced in association with a photon at √ s = 13 TeV |
title_fullStr |
Search for low-mass quark-antiquark resonances produced in association with a photon at √ s = 13 TeV |
title_full_unstemmed |
Search for low-mass quark-antiquark resonances produced in association with a photon at √ s = 13 TeV |
title_sort |
Search for low-mass quark-antiquark resonances produced in association with a photon 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 Quarks Colisões proton-proton |
topic |
Aceleradores de partículas Quarks Colisões proton-proton |
description |
A search for narrow low-mass resonances decaying to quark-antiquark pairs is presented. The search is based on proton-proton collision events collected at 13 TeV by the CMS detector at the CERN LHC. The data sample corresponds to an integrated luminosity of 35.9 fb−1, recorded in 2016. The search considers the case where the resonance has high transverse momentum due to initial-state radiation of a hard photon. To study this process, the decay products of the resonance are reconstructed as a single large-radius jet with two-pronged substructure. The signal would be identified as a localized excess in the jet invariant mass spectrum. No evidence for such a resonance is observed in the mass range 10 to 125 GeV. Upper limits at the 95% confidence level are set on the coupling strength of resonances decaying to quark pairs. The results obtained with this photon trigger strategy provide the first direct constraints on quark-antiquark resonance masses below 50 GeV obtained at a hadron collider. |
publishDate |
2019 |
dc.date.issued.fl_str_mv |
2019 |
dc.date.accessioned.fl_str_mv |
2020-01-14T04:15:48Z |
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/10183/204143 |
dc.identifier.issn.pt_BR.fl_str_mv |
0031-9007 |
dc.identifier.nrb.pt_BR.fl_str_mv |
001109567 |
identifier_str_mv |
0031-9007 001109567 |
url |
http://hdl.handle.net/10183/204143 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Physical review letters. Melville. Vol. 123, no. 23 (Dec. 2019), 231803, 17 p. |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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application/pdf |
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