Nuclear modification factor in small system collisions within perturbative QCD including thermal effects

Detalhes bibliográficos
Autor(a) principal: Moriggi, Lucas Soster
Data de Publicação: 2022
Outros Autores: Machado, Magno Valério Trindade
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/254594
Resumo: In this paper, the nuclear modification factors, RxA, are investigated for pion production in small system collisions, measured by PHENIX experiment at RHIC (Relativistic Heavy Ion Collider). The theoretical framework is the parton transverse momentum kT-factorization formalism for hard processes at small momentum fraction, x. Evidence for collective expansion and thermal effects for pions, produced at equilibrium, is studied based on phenomenological parametrization of blast-wave type in the relaxation time approximation. The dependencies on the centrality and on the projectile species are discussed in terms of the behavior of Cronin peak and the suppression of RxA at large transverse momentum, pT. The multiplicity of produced particles, which is sensitive to the soft sector of the spectra, is also included in the present analysis.
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spelling Moriggi, Lucas SosterMachado, Magno Valério Trindade2023-02-10T04:56:40Z20222624-8174http://hdl.handle.net/10183/254594001155860In this paper, the nuclear modification factors, RxA, are investigated for pion production in small system collisions, measured by PHENIX experiment at RHIC (Relativistic Heavy Ion Collider). The theoretical framework is the parton transverse momentum kT-factorization formalism for hard processes at small momentum fraction, x. Evidence for collective expansion and thermal effects for pions, produced at equilibrium, is studied based on phenomenological parametrization of blast-wave type in the relaxation time approximation. The dependencies on the centrality and on the projectile species are discussed in terms of the behavior of Cronin peak and the suppression of RxA at large transverse momentum, pT. The multiplicity of produced particles, which is sensitive to the soft sector of the spectra, is also included in the present analysis.application/pdfengPhysics. Basel. Vol. 4, no. 3 (Sept. 2022), p. 787-799Cromodinâmica quânticaProducao de pionsAceleradores de partículasHadronskT-factorization approachParton saturation phenomenonGeometric scaling in hadron–hadron collisionsHigh-energy collisionsMultiparticle productionTransverse momentum distributionNuclear modification factor in small system collisions within perturbative QCD including thermal effectsEstrangeiroinfo: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:UFRGSTEXT001155860.pdf.txt001155860.pdf.txtExtracted Texttext/plain49960http://www.lume.ufrgs.br/bitstream/10183/254594/2/001155860.pdf.txtf6c604d3862230d130bacf1c493165d5MD52ORIGINAL001155860.pdfTexto completo (inglês)application/pdf412464http://www.lume.ufrgs.br/bitstream/10183/254594/1/001155860.pdf88b95b14c62f8828097c1610186b6001MD5110183/2545942024-02-11 06:04:34.357096oai:www.lume.ufrgs.br:10183/254594Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2024-02-11T08:04:34Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Nuclear modification factor in small system collisions within perturbative QCD including thermal effects
title Nuclear modification factor in small system collisions within perturbative QCD including thermal effects
spellingShingle Nuclear modification factor in small system collisions within perturbative QCD including thermal effects
Moriggi, Lucas Soster
Cromodinâmica quântica
Producao de pions
Aceleradores de partículas
Hadrons
kT-factorization approach
Parton saturation phenomenon
Geometric scaling in hadron–hadron collisions
High-energy collisions
Multiparticle production
Transverse momentum distribution
title_short Nuclear modification factor in small system collisions within perturbative QCD including thermal effects
title_full Nuclear modification factor in small system collisions within perturbative QCD including thermal effects
title_fullStr Nuclear modification factor in small system collisions within perturbative QCD including thermal effects
title_full_unstemmed Nuclear modification factor in small system collisions within perturbative QCD including thermal effects
title_sort Nuclear modification factor in small system collisions within perturbative QCD including thermal effects
author Moriggi, Lucas Soster
author_facet Moriggi, Lucas Soster
Machado, Magno Valério Trindade
author_role author
author2 Machado, Magno Valério Trindade
author2_role author
dc.contributor.author.fl_str_mv Moriggi, Lucas Soster
Machado, Magno Valério Trindade
dc.subject.por.fl_str_mv Cromodinâmica quântica
Producao de pions
Aceleradores de partículas
Hadrons
topic Cromodinâmica quântica
Producao de pions
Aceleradores de partículas
Hadrons
kT-factorization approach
Parton saturation phenomenon
Geometric scaling in hadron–hadron collisions
High-energy collisions
Multiparticle production
Transverse momentum distribution
dc.subject.eng.fl_str_mv kT-factorization approach
Parton saturation phenomenon
Geometric scaling in hadron–hadron collisions
High-energy collisions
Multiparticle production
Transverse momentum distribution
description In this paper, the nuclear modification factors, RxA, are investigated for pion production in small system collisions, measured by PHENIX experiment at RHIC (Relativistic Heavy Ion Collider). The theoretical framework is the parton transverse momentum kT-factorization formalism for hard processes at small momentum fraction, x. Evidence for collective expansion and thermal effects for pions, produced at equilibrium, is studied based on phenomenological parametrization of blast-wave type in the relaxation time approximation. The dependencies on the centrality and on the projectile species are discussed in terms of the behavior of Cronin peak and the suppression of RxA at large transverse momentum, pT. The multiplicity of produced particles, which is sensitive to the soft sector of the spectra, is also included in the present analysis.
publishDate 2022
dc.date.issued.fl_str_mv 2022
dc.date.accessioned.fl_str_mv 2023-02-10T04:56:40Z
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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dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/254594
dc.identifier.issn.pt_BR.fl_str_mv 2624-8174
dc.identifier.nrb.pt_BR.fl_str_mv 001155860
identifier_str_mv 2624-8174
001155860
url http://hdl.handle.net/10183/254594
dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartof.pt_BR.fl_str_mv Physics. Basel. Vol. 4, no. 3 (Sept. 2022), p. 787-799
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
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institution UFRGS
reponame_str Repositório Institucional da UFRGS
collection Repositório Institucional da UFRGS
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