Nuclear modification factor of light neutral-meson spectra up to high transverse momentum in p–Pb collisions at √sNN = 8.16 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/10183/249635 |
Resumo: | Neutral pion (π0) and η meson production cross sections were measured up to unprecedentedly high transverse momenta (pT) in p–Pb collisions at √sNN = 8.16 TeV. The mesons were reconstructed via their two-photon decay channel in the rapidity interval −1.3 < y < 0.3 in the ranges of 0.4 < pT < 200 GeV/c and 1.0 < pT < 50 GeV/c, respectively. The respective nuclear modification factor (RpPb) is presented for pT up to of 200 and 30 GeV/c, where the former was achieved by extending the π0 measurement in pp collisions at √s = 8 TeV using the merged cluster technique. The values of RpPb are below unity for pT < 10 GeV/c, while they are consistent with unity for pT > 10 GeV/c, leaving essentially no room for final state energy loss. The new data provide strong constraints for nuclear parton distribution and fragmentation functions over a broad kinematic range and are compared to model predictions as well as previous results at √sNN = 5.02 TeV. |
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Acharya, ShreyasiGay Ducati, Maria BeatrizPereira, Luis GustavoPezzi, Rafael PerettiALICE Collaboration2022-10-03T04:49:09Z20220370-2693http://hdl.handle.net/10183/249635001147160Neutral pion (π0) and η meson production cross sections were measured up to unprecedentedly high transverse momenta (pT) in p–Pb collisions at √sNN = 8.16 TeV. The mesons were reconstructed via their two-photon decay channel in the rapidity interval −1.3 < y < 0.3 in the ranges of 0.4 < pT < 200 GeV/c and 1.0 < pT < 50 GeV/c, respectively. The respective nuclear modification factor (RpPb) is presented for pT up to of 200 and 30 GeV/c, where the former was achieved by extending the π0 measurement in pp collisions at √s = 8 TeV using the merged cluster technique. The values of RpPb are below unity for pT < 10 GeV/c, while they are consistent with unity for pT > 10 GeV/c, leaving essentially no room for final state energy loss. The new data provide strong constraints for nuclear parton distribution and fragmentation functions over a broad kinematic range and are compared to model predictions as well as previous results at √sNN = 5.02 TeV.application/pdfengPhysics letters. B. Amsterdam. Vol. 827 (Apr. 2022), 136943, 12 p.Aceleradores de partículasMesonsColisao de ions pesadosNuclear modification factor of light neutral-meson spectra up to high transverse momentum 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:UFRGSTEXT001147160.pdf.txt001147160.pdf.txtExtracted Texttext/plain71138http://www.lume.ufrgs.br/bitstream/10183/249635/2/001147160.pdf.txt6e8062aeca3197b2048ca152a64d4f4dMD52ORIGINAL001147160.pdfTexto completo (inglês)application/pdf919865http://www.lume.ufrgs.br/bitstream/10183/249635/1/001147160.pdfcdef757536879ef5968252e42f317353MD5110183/2496352023-11-12 04:24:45.070785oai:www.lume.ufrgs.br:10183/249635Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-11-12T06:24:45Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Nuclear modification factor of light neutral-meson spectra up to high transverse momentum in p–Pb collisions at √sNN = 8.16 TeV |
title |
Nuclear modification factor of light neutral-meson spectra up to high transverse momentum in p–Pb collisions at √sNN = 8.16 TeV |
spellingShingle |
Nuclear modification factor of light neutral-meson spectra up to high transverse momentum in p–Pb collisions at √sNN = 8.16 TeV Acharya, Shreyasi Aceleradores de partículas Mesons Colisao de ions pesados |
title_short |
Nuclear modification factor of light neutral-meson spectra up to high transverse momentum in p–Pb collisions at √sNN = 8.16 TeV |
title_full |
Nuclear modification factor of light neutral-meson spectra up to high transverse momentum in p–Pb collisions at √sNN = 8.16 TeV |
title_fullStr |
Nuclear modification factor of light neutral-meson spectra up to high transverse momentum in p–Pb collisions at √sNN = 8.16 TeV |
title_full_unstemmed |
Nuclear modification factor of light neutral-meson spectra up to high transverse momentum in p–Pb collisions at √sNN = 8.16 TeV |
title_sort |
Nuclear modification factor of light neutral-meson spectra up to high transverse momentum 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 Mesons Colisao de ions pesados |
topic |
Aceleradores de partículas Mesons Colisao de ions pesados |
description |
Neutral pion (π0) and η meson production cross sections were measured up to unprecedentedly high transverse momenta (pT) in p–Pb collisions at √sNN = 8.16 TeV. The mesons were reconstructed via their two-photon decay channel in the rapidity interval −1.3 < y < 0.3 in the ranges of 0.4 < pT < 200 GeV/c and 1.0 < pT < 50 GeV/c, respectively. The respective nuclear modification factor (RpPb) is presented for pT up to of 200 and 30 GeV/c, where the former was achieved by extending the π0 measurement in pp collisions at √s = 8 TeV using the merged cluster technique. The values of RpPb are below unity for pT < 10 GeV/c, while they are consistent with unity for pT > 10 GeV/c, leaving essentially no room for final state energy loss. The new data provide strong constraints for nuclear parton distribution and fragmentation functions over a broad kinematic range and are compared to model predictions as well as previous results at √sNN = 5.02 TeV. |
publishDate |
2022 |
dc.date.accessioned.fl_str_mv |
2022-10-03T04:49:09Z |
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/10183/249635 |
dc.identifier.issn.pt_BR.fl_str_mv |
0370-2693 |
dc.identifier.nrb.pt_BR.fl_str_mv |
001147160 |
identifier_str_mv |
0370-2693 001147160 |
url |
http://hdl.handle.net/10183/249635 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Physics letters. B. Amsterdam. Vol. 827 (Apr. 2022), 136943, 12 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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Repositório Institucional da UFRGS |
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