Υ production in p–Pb collisions at √sNN=8.16 TeV
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/217343 |
Resumo: | Y production in p–Pb interactions is studied at the centre-of-mass energy per nucleon–nucleon collision √sNN=8.16 TeV with the ALICE detector at the CERN LHC. The measurement is performed reconstructing bottomonium resonances via their dimuon decay channel, in the centre-of-mass rapidity intervals 2.03 <ycms<3.53 and −4.46 <ycms<−2.96, down to zero transverse momentum. In this work, results on the Υ(1S) production cross section as a function of rapidity and transverse momentum are presented. The corresponding nuclear modification factor shows a suppression of the Υ(1S) yields with respect to pp collisions, both at forward and backward rapidity. This suppression is stronger in the low transverse momentum region and shows no significant dependence on the centrality of the interactions. Furthermore, the Υ(2S) nuclear modification factor is evaluated, suggesting a suppression similar to that of the Υ(1S). A first measurement of the Υ(3S) has also been performed. Finally, results are compared with previous ALICE measurements in p–Pb collisions at √sNN=5.02 TeV and with theoretical calculations. |
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Acharya, ShreyasiGay Ducati, Maria BeatrizPereira, Luis GustavoPezzi, Rafael PerettiALICE Collaboration2021-01-14T04:11:47Z20200370-2693http://hdl.handle.net/10183/217343001120413Y production in p–Pb interactions is studied at the centre-of-mass energy per nucleon–nucleon collision √sNN=8.16 TeV with the ALICE detector at the CERN LHC. The measurement is performed reconstructing bottomonium resonances via their dimuon decay channel, in the centre-of-mass rapidity intervals 2.03 <ycms<3.53 and −4.46 <ycms<−2.96, down to zero transverse momentum. In this work, results on the Υ(1S) production cross section as a function of rapidity and transverse momentum are presented. The corresponding nuclear modification factor shows a suppression of the Υ(1S) yields with respect to pp collisions, both at forward and backward rapidity. This suppression is stronger in the low transverse momentum region and shows no significant dependence on the centrality of the interactions. Furthermore, the Υ(2S) nuclear modification factor is evaluated, suggesting a suppression similar to that of the Υ(1S). A first measurement of the Υ(3S) has also been performed. Finally, results are compared with previous ALICE measurements in p–Pb collisions at √sNN=5.02 TeV and with theoretical calculations.application/pdfengPhysics letters. B. Amsterdam. Vol. 806 (July 2020), 135486, 15 p.Aceleradores de partículasColisao de nucleon-nucleoColisões proton-protonΥ production in p–Pb collisions at √sNN=8.16 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:UFRGSTEXT001120413.pdf.txt001120413.pdf.txtExtracted Texttext/plain86710http://www.lume.ufrgs.br/bitstream/10183/217343/2/001120413.pdf.txt5826aba20ea3fe7e5550ec8a3e7b97b9MD52ORIGINAL001120413.pdfTexto completo (inglês)application/pdf742106http://www.lume.ufrgs.br/bitstream/10183/217343/1/001120413.pdf54f36682d6135624f33ecf33cfb740cbMD5110183/2173432023-11-14 04:25:17.567109oai:www.lume.ufrgs.br:10183/217343Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-11-14T06:25:17Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Υ production in p–Pb collisions at √sNN=8.16 TeV |
title |
Υ production in p–Pb collisions at √sNN=8.16 TeV |
spellingShingle |
Υ production in p–Pb collisions at √sNN=8.16 TeV Acharya, Shreyasi Aceleradores de partículas Colisao de nucleon-nucleo Colisões proton-proton |
title_short |
Υ production in p–Pb collisions at √sNN=8.16 TeV |
title_full |
Υ production in p–Pb collisions at √sNN=8.16 TeV |
title_fullStr |
Υ production in p–Pb collisions at √sNN=8.16 TeV |
title_full_unstemmed |
Υ production in p–Pb collisions at √sNN=8.16 TeV |
title_sort |
Υ production in p–Pb collisions at √sNN=8.16 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 Colisao de nucleon-nucleo Colisões proton-proton |
topic |
Aceleradores de partículas Colisao de nucleon-nucleo Colisões proton-proton |
description |
Y production in p–Pb interactions is studied at the centre-of-mass energy per nucleon–nucleon collision √sNN=8.16 TeV with the ALICE detector at the CERN LHC. The measurement is performed reconstructing bottomonium resonances via their dimuon decay channel, in the centre-of-mass rapidity intervals 2.03 <ycms<3.53 and −4.46 <ycms<−2.96, down to zero transverse momentum. In this work, results on the Υ(1S) production cross section as a function of rapidity and transverse momentum are presented. The corresponding nuclear modification factor shows a suppression of the Υ(1S) yields with respect to pp collisions, both at forward and backward rapidity. This suppression is stronger in the low transverse momentum region and shows no significant dependence on the centrality of the interactions. Furthermore, the Υ(2S) nuclear modification factor is evaluated, suggesting a suppression similar to that of the Υ(1S). A first measurement of the Υ(3S) has also been performed. Finally, results are compared with previous ALICE measurements in p–Pb collisions at √sNN=5.02 TeV and with theoretical calculations. |
publishDate |
2020 |
dc.date.issued.fl_str_mv |
2020 |
dc.date.accessioned.fl_str_mv |
2021-01-14T04:11:47Z |
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/10183/217343 |
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0370-2693 |
dc.identifier.nrb.pt_BR.fl_str_mv |
001120413 |
identifier_str_mv |
0370-2693 001120413 |
url |
http://hdl.handle.net/10183/217343 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Physics letters. B. Amsterdam. Vol. 806 (July 2020), 135486, 15 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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