Study of dijet events with a large rapidity gap between the two leading jets in pp collisions at √s = 7 TeV
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/212588 |
Resumo: | Events with no charged particles produced between the two leading jets are studied in proton-proton collisions at √s = 7 TeV. The jets were required to have transverse momentum p jet T > 40 GeV and pseudorapidity 1.5 < |ηjet| < 4.7, and to have values of ηjet with opposite signs. The data used for this study were collected with the CMS detector during low-luminosity running at the LHC, and correspond to an integrated luminosity of 8 pb−1. Events with no charged particles with pT > 0.2 GeV in the interval −1 <η< 1 between the jets are observed in excess of calculations that assume no color-singlet exchange. The fraction of events with such a rapidity gap, amounting to 0.5–1% of the selected dijet sample, is measured as a function of the pT of the second-leading jet and of the rapidity separation between the jets. The data are compared to previous measurements at the Tevatron, and to perturbative quantum chromodynamics calculations based on the Balitsky–Fadin–Kuraev–Lipatov evolution equations, including different models of the nonperturbative gap survival probability. |
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Sirunyan, A. M.Silveira, Gustavo Gil daCMS Collaboration2020-08-04T03:39:10Z20181434-6044http://hdl.handle.net/10183/212588001115500Events with no charged particles produced between the two leading jets are studied in proton-proton collisions at √s = 7 TeV. The jets were required to have transverse momentum p jet T > 40 GeV and pseudorapidity 1.5 < |ηjet| < 4.7, and to have values of ηjet with opposite signs. The data used for this study were collected with the CMS detector during low-luminosity running at the LHC, and correspond to an integrated luminosity of 8 pb−1. Events with no charged particles with pT > 0.2 GeV in the interval −1 <η< 1 between the jets are observed in excess of calculations that assume no color-singlet exchange. The fraction of events with such a rapidity gap, amounting to 0.5–1% of the selected dijet sample, is measured as a function of the pT of the second-leading jet and of the rapidity separation between the jets. The data are compared to previous measurements at the Tevatron, and to perturbative quantum chromodynamics calculations based on the Balitsky–Fadin–Kuraev–Lipatov evolution equations, including different models of the nonperturbative gap survival probability.application/pdfengThe European physical journal. C, Particles and fields. Berlin. Vol. 78, no. 3 (Mar. 2018), 242, 27 p.Aceleradores de partículasColisões proton-protonStudy of dijet events with a large rapidity gap between the two leading jets in pp collisions at √s = 7 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:UFRGSTEXT001115500.pdf.txt001115500.pdf.txtExtracted Texttext/plain105234http://www.lume.ufrgs.br/bitstream/10183/212588/3/001115500.pdf.txtee1571020c81424374c505d439cc4188MD53001115500-02.pdf.txt001115500-02.pdf.txtExtracted Texttext/plain47771http://www.lume.ufrgs.br/bitstream/10183/212588/4/001115500-02.pdf.txtf6967170ba1ecdcb313b7f60f31530a2MD54ORIGINAL001115500.pdfTexto completo (inglês)application/pdf1082494http://www.lume.ufrgs.br/bitstream/10183/212588/1/001115500.pdfb5a43642c85c7e6c7e340a1a77b1412fMD51001115500-02.pdfErrataapplication/pdf348825http://www.lume.ufrgs.br/bitstream/10183/212588/2/001115500-02.pdfca9e4fc68db591c0fb01f3c1abb44cdfMD5210183/2125882023-08-05 03:39:27.260608oai:www.lume.ufrgs.br:10183/212588Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-08-05T06:39:27Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Study of dijet events with a large rapidity gap between the two leading jets in pp collisions at √s = 7 TeV |
title |
Study of dijet events with a large rapidity gap between the two leading jets in pp collisions at √s = 7 TeV |
spellingShingle |
Study of dijet events with a large rapidity gap between the two leading jets in pp collisions at √s = 7 TeV Sirunyan, A. M. Aceleradores de partículas Colisões proton-proton |
title_short |
Study of dijet events with a large rapidity gap between the two leading jets in pp collisions at √s = 7 TeV |
title_full |
Study of dijet events with a large rapidity gap between the two leading jets in pp collisions at √s = 7 TeV |
title_fullStr |
Study of dijet events with a large rapidity gap between the two leading jets in pp collisions at √s = 7 TeV |
title_full_unstemmed |
Study of dijet events with a large rapidity gap between the two leading jets in pp collisions at √s = 7 TeV |
title_sort |
Study of dijet events with a large rapidity gap between the two leading jets in pp collisions at √s = 7 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 |
topic |
Aceleradores de partículas Colisões proton-proton |
description |
Events with no charged particles produced between the two leading jets are studied in proton-proton collisions at √s = 7 TeV. The jets were required to have transverse momentum p jet T > 40 GeV and pseudorapidity 1.5 < |ηjet| < 4.7, and to have values of ηjet with opposite signs. The data used for this study were collected with the CMS detector during low-luminosity running at the LHC, and correspond to an integrated luminosity of 8 pb−1. Events with no charged particles with pT > 0.2 GeV in the interval −1 <η< 1 between the jets are observed in excess of calculations that assume no color-singlet exchange. The fraction of events with such a rapidity gap, amounting to 0.5–1% of the selected dijet sample, is measured as a function of the pT of the second-leading jet and of the rapidity separation between the jets. The data are compared to previous measurements at the Tevatron, and to perturbative quantum chromodynamics calculations based on the Balitsky–Fadin–Kuraev–Lipatov evolution equations, including different models of the nonperturbative gap survival probability. |
publishDate |
2018 |
dc.date.issued.fl_str_mv |
2018 |
dc.date.accessioned.fl_str_mv |
2020-08-04T03:39:10Z |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
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article |
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publishedVersion |
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http://hdl.handle.net/10183/212588 |
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1434-6044 |
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001115500 |
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1434-6044 001115500 |
url |
http://hdl.handle.net/10183/212588 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
The European physical journal. C, Particles and fields. Berlin. Vol. 78, no. 3 (Mar. 2018), 242, 27 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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