Inclusive quarkonium production in pp collisions at √s = 5.02 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/10183/262324 |
Resumo: | This article reports on the inclusive production cross section of several quarkonium states, J/ψ, ψ(2S), ϒ(1S), ϒ(2S), and ϒ(3S), measured with the ALICE detector at the LHC, in pp collisions at √s = 5.02 TeV. The analysis is performed in the dimuon decay channel at forward rapidity (2.5 < y < 4). The integrated cross sections and transverse-momentum (pT) and rapidity (y) differential cross sections for J/ψ, ψ(2S), ϒ(1S), and the ψ(2S)-to-J/ψ cross section ratios are presented. The integrated cross sections, assuming unpolarized quarkonia, are: σJ/ψ (pT < 20 GeV/c) = 5.88 ± 0.03 ± 0.34 μb, σψ(2S) (pT < 12 GeV/c) = 0.87 ± 0.06 ± 0.10 μb, σϒ(1S) (pT < 15 GeV/c) = 45.5 ± 3.9 ± 3.5 nb, σϒ(2S) (pT < 15 GeV/c) = 22.4 ± 3.2 ± 2.7 nb, and σϒ(3S) (pT < 15 GeV/c) = 4.9 ± 2.2 ± 1.0 nb, where the first (second) uncertainty is the statistical (systematic) one. For the first time, the cross sections of the three ϒ states, as well as the ψ(2S) one as a function of pT and y, are measured at √s = 5.02 TeV at forward rapidity. These measurements also significantly extend the J/ψ pT reach and supersede previously published results. A comparison with ALICE measurements in pp collisions at √s = 2.76, 7, 8, and 13 TeV is presented and the energy dependence of quarkonium production cross sections is discussed. Finally, the results are compared with the predictions from several production models. |
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Acharya, ShreyasiGay Ducati, Maria BeatrizPereira, Luis GustavoPezzi, Rafael PerettiALICE Collaboration2023-07-19T03:38:10Z20231434-6044http://hdl.handle.net/10183/262324001165268This article reports on the inclusive production cross section of several quarkonium states, J/ψ, ψ(2S), ϒ(1S), ϒ(2S), and ϒ(3S), measured with the ALICE detector at the LHC, in pp collisions at √s = 5.02 TeV. The analysis is performed in the dimuon decay channel at forward rapidity (2.5 < y < 4). The integrated cross sections and transverse-momentum (pT) and rapidity (y) differential cross sections for J/ψ, ψ(2S), ϒ(1S), and the ψ(2S)-to-J/ψ cross section ratios are presented. The integrated cross sections, assuming unpolarized quarkonia, are: σJ/ψ (pT < 20 GeV/c) = 5.88 ± 0.03 ± 0.34 μb, σψ(2S) (pT < 12 GeV/c) = 0.87 ± 0.06 ± 0.10 μb, σϒ(1S) (pT < 15 GeV/c) = 45.5 ± 3.9 ± 3.5 nb, σϒ(2S) (pT < 15 GeV/c) = 22.4 ± 3.2 ± 2.7 nb, and σϒ(3S) (pT < 15 GeV/c) = 4.9 ± 2.2 ± 1.0 nb, where the first (second) uncertainty is the statistical (systematic) one. For the first time, the cross sections of the three ϒ states, as well as the ψ(2S) one as a function of pT and y, are measured at √s = 5.02 TeV at forward rapidity. These measurements also significantly extend the J/ψ pT reach and supersede previously published results. A comparison with ALICE measurements in pp collisions at √s = 2.76, 7, 8, and 13 TeV is presented and the energy dependence of quarkonium production cross sections is discussed. Finally, the results are compared with the predictions from several production models.application/pdfengThe European physical journal. C, Particles and fields. Berlin. Vol. 83, no. 1 (Jan. 2023), 61, 27 p.Aceleradores de partículasColisões proton-protonMesonsInclusive quarkonium production in pp collisions at √s = 5.02 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:UFRGSTEXT001165268.pdf.txt001165268.pdf.txtExtracted Texttext/plain114013http://www.lume.ufrgs.br/bitstream/10183/262324/2/001165268.pdf.txtf7687b1704c9c475a50ef6d7d1540f0dMD52ORIGINAL001165268.pdfTexto completoapplication/pdf2989768http://www.lume.ufrgs.br/bitstream/10183/262324/1/001165268.pdf8bad15dec0c87cf00f696552f0cb1bc9MD5110183/2623242023-11-11 04:24:09.948334oai:www.lume.ufrgs.br:10183/262324Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-11-11T06:24:09Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Inclusive quarkonium production in pp collisions at √s = 5.02 TeV |
title |
Inclusive quarkonium production in pp collisions at √s = 5.02 TeV |
spellingShingle |
Inclusive quarkonium production in pp collisions at √s = 5.02 TeV Acharya, Shreyasi Aceleradores de partículas Colisões proton-proton Mesons |
title_short |
Inclusive quarkonium production in pp collisions at √s = 5.02 TeV |
title_full |
Inclusive quarkonium production in pp collisions at √s = 5.02 TeV |
title_fullStr |
Inclusive quarkonium production in pp collisions at √s = 5.02 TeV |
title_full_unstemmed |
Inclusive quarkonium production in pp collisions at √s = 5.02 TeV |
title_sort |
Inclusive quarkonium production in pp collisions at √s = 5.02 TeV |
author |
Acharya, Shreyasi |
author_facet |
Acharya, Shreyasi Gay Ducati, Maria Beatriz Pereira, Luis Gustavo Pezzi, Rafael Peretti ALICE Collaboration |
author_role |
author |
author2 |
Gay Ducati, Maria Beatriz Pereira, Luis Gustavo Pezzi, Rafael Peretti ALICE Collaboration |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Acharya, Shreyasi Gay Ducati, Maria Beatriz Pereira, Luis Gustavo Pezzi, Rafael Peretti ALICE Collaboration |
dc.subject.por.fl_str_mv |
Aceleradores de partículas Colisões proton-proton Mesons |
topic |
Aceleradores de partículas Colisões proton-proton Mesons |
description |
This article reports on the inclusive production cross section of several quarkonium states, J/ψ, ψ(2S), ϒ(1S), ϒ(2S), and ϒ(3S), measured with the ALICE detector at the LHC, in pp collisions at √s = 5.02 TeV. The analysis is performed in the dimuon decay channel at forward rapidity (2.5 < y < 4). The integrated cross sections and transverse-momentum (pT) and rapidity (y) differential cross sections for J/ψ, ψ(2S), ϒ(1S), and the ψ(2S)-to-J/ψ cross section ratios are presented. The integrated cross sections, assuming unpolarized quarkonia, are: σJ/ψ (pT < 20 GeV/c) = 5.88 ± 0.03 ± 0.34 μb, σψ(2S) (pT < 12 GeV/c) = 0.87 ± 0.06 ± 0.10 μb, σϒ(1S) (pT < 15 GeV/c) = 45.5 ± 3.9 ± 3.5 nb, σϒ(2S) (pT < 15 GeV/c) = 22.4 ± 3.2 ± 2.7 nb, and σϒ(3S) (pT < 15 GeV/c) = 4.9 ± 2.2 ± 1.0 nb, where the first (second) uncertainty is the statistical (systematic) one. For the first time, the cross sections of the three ϒ states, as well as the ψ(2S) one as a function of pT and y, are measured at √s = 5.02 TeV at forward rapidity. These measurements also significantly extend the J/ψ pT reach and supersede previously published results. A comparison with ALICE measurements in pp collisions at √s = 2.76, 7, 8, and 13 TeV is presented and the energy dependence of quarkonium production cross sections is discussed. Finally, the results are compared with the predictions from several production models. |
publishDate |
2023 |
dc.date.accessioned.fl_str_mv |
2023-07-19T03:38:10Z |
dc.date.issued.fl_str_mv |
2023 |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
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info:eu-repo/semantics/publishedVersion |
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dc.identifier.issn.pt_BR.fl_str_mv |
1434-6044 |
dc.identifier.nrb.pt_BR.fl_str_mv |
001165268 |
identifier_str_mv |
1434-6044 001165268 |
url |
http://hdl.handle.net/10183/262324 |
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. 83, no. 1 (Jan. 2023), 61, 27 p. |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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