First search for exclusive diphoton production at high mass with tagged protons in proton-proton collisions at √s = 13 TeV
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/247663 |
Resumo: | A search for exclusive two-photon production via photon exchange in proton-proton collisions, p p → p γ γ p with intact protons, is presented. The data correspond to an integrated luminosity of 9.4 fb −1 collected in 2016 using the CMS and TOTEM detectors at a center-of-mass energy of 13 TeV at the LHC. Events are selected with a diphoton invariant mass above 350 GeV and with both protons intact in the final state, to reduce backgrounds from strong interactions. The events of interest are those where the invariant mass and rapidity calculated from the momentum losses of the forward-moving protons match the mass and rapidity of the central, two-photon system. No events are found that satisfy this condition. Interpreting this result in an effective dimension-8 extension of the standard model, the first limits are set on the two anomalous four-photon coupling parameters. If the other parameter is constrained to its standard model value, the limits at 95% confidence level are | ζ 1 | < 2.9 × 10 −13 GeV −4 and | ζ 2 | < 6.0 × 10 −13 GeV −4 . |
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Tumasyan, ArmenSilveira, Gustavo Gil daCMS CollaborationTOTEM Collaboration2022-08-21T04:38:55Z20220031-9007http://hdl.handle.net/10183/247663001147688A search for exclusive two-photon production via photon exchange in proton-proton collisions, p p → p γ γ p with intact protons, is presented. The data correspond to an integrated luminosity of 9.4 fb −1 collected in 2016 using the CMS and TOTEM detectors at a center-of-mass energy of 13 TeV at the LHC. Events are selected with a diphoton invariant mass above 350 GeV and with both protons intact in the final state, to reduce backgrounds from strong interactions. The events of interest are those where the invariant mass and rapidity calculated from the momentum losses of the forward-moving protons match the mass and rapidity of the central, two-photon system. No events are found that satisfy this condition. Interpreting this result in an effective dimension-8 extension of the standard model, the first limits are set on the two anomalous four-photon coupling parameters. If the other parameter is constrained to its standard model value, the limits at 95% confidence level are | ζ 1 | < 2.9 × 10 −13 GeV −4 and | ζ 2 | < 6.0 × 10 −13 GeV −4 .application/pdfengPhysical review letters. Melville. Vol. 129, no. 1 (July 2022), 011801, 20 p.Aceleradores de partículasColisões proton-protonFirst search for exclusive diphoton production at high mass with tagged protons 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:UFRGSTEXT001147688.pdf.txt001147688.pdf.txtExtracted Texttext/plain104992http://www.lume.ufrgs.br/bitstream/10183/247663/2/001147688.pdf.txte128ef3a65ad505fc5f7dc36f7a0d9cfMD52ORIGINAL001147688.pdfTexto completo (inglês)application/pdf1112531http://www.lume.ufrgs.br/bitstream/10183/247663/1/001147688.pdf233760f2757ab7ef910b09fa19e42674MD5110183/2476632023-07-22 03:40:37.650806oai:www.lume.ufrgs.br:10183/247663Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-07-22T06:40:37Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
First search for exclusive diphoton production at high mass with tagged protons in proton-proton collisions at √s = 13 TeV |
title |
First search for exclusive diphoton production at high mass with tagged protons in proton-proton collisions at √s = 13 TeV |
spellingShingle |
First search for exclusive diphoton production at high mass with tagged protons in proton-proton collisions at √s = 13 TeV Tumasyan, Armen Aceleradores de partículas Colisões proton-proton |
title_short |
First search for exclusive diphoton production at high mass with tagged protons in proton-proton collisions at √s = 13 TeV |
title_full |
First search for exclusive diphoton production at high mass with tagged protons in proton-proton collisions at √s = 13 TeV |
title_fullStr |
First search for exclusive diphoton production at high mass with tagged protons in proton-proton collisions at √s = 13 TeV |
title_full_unstemmed |
First search for exclusive diphoton production at high mass with tagged protons in proton-proton collisions at √s = 13 TeV |
title_sort |
First search for exclusive diphoton production at high mass with tagged protons in proton-proton collisions at √s = 13 TeV |
author |
Tumasyan, Armen |
author_facet |
Tumasyan, Armen Silveira, Gustavo Gil da CMS Collaboration TOTEM Collaboration |
author_role |
author |
author2 |
Silveira, Gustavo Gil da CMS Collaboration TOTEM Collaboration |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Tumasyan, Armen Silveira, Gustavo Gil da CMS Collaboration TOTEM Collaboration |
dc.subject.por.fl_str_mv |
Aceleradores de partículas Colisões proton-proton |
topic |
Aceleradores de partículas Colisões proton-proton |
description |
A search for exclusive two-photon production via photon exchange in proton-proton collisions, p p → p γ γ p with intact protons, is presented. The data correspond to an integrated luminosity of 9.4 fb −1 collected in 2016 using the CMS and TOTEM detectors at a center-of-mass energy of 13 TeV at the LHC. Events are selected with a diphoton invariant mass above 350 GeV and with both protons intact in the final state, to reduce backgrounds from strong interactions. The events of interest are those where the invariant mass and rapidity calculated from the momentum losses of the forward-moving protons match the mass and rapidity of the central, two-photon system. No events are found that satisfy this condition. Interpreting this result in an effective dimension-8 extension of the standard model, the first limits are set on the two anomalous four-photon coupling parameters. If the other parameter is constrained to its standard model value, the limits at 95% confidence level are | ζ 1 | < 2.9 × 10 −13 GeV −4 and | ζ 2 | < 6.0 × 10 −13 GeV −4 . |
publishDate |
2022 |
dc.date.accessioned.fl_str_mv |
2022-08-21T04:38:55Z |
dc.date.issued.fl_str_mv |
2022 |
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/10183/247663 |
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0031-9007 |
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001147688 |
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0031-9007 001147688 |
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http://hdl.handle.net/10183/247663 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Physical review letters. Melville. Vol. 129, no. 1 (July 2022), 011801, 20 p. |
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info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
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