QCD collisional energy loss in an increasingly interacting quark-gluon plasma

Detalhes bibliográficos
Autor(a) principal: Ducati, Maria Beatriz de Leone Gay
Data de Publicação: 2007
Outros Autores: Gonçalves, Victor Paulo Barros, Mackedanz, Luiz Fernando
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da FURG (RI FURG)
Texto Completo: http://repositorio.furg.br/handle/1/1081
Resumo: The discovery of the jet quenching in central Au + Au collisions at the Relativistic Heavyion Collider (RHIC) at Brookhaven National Laboratory has provided clear evidence for the formation of strongly interacting dense matter. It has been predicted to occur due to the energy loss of high energy partons that propagate through the quark gluon plasma. In this paper we investigate the dependence of the parton energy loss due to elastic scatterings in a parton plasma on the value of the strong coupling and its running with the evolution of the system. We analyze different prescriptions for the QCD coupling and calculate the energy and length dependence of the fractional energy loss. Moreover, the partonic quenching factor for light and heavy quarks is estimated. We found that the predicted enhancement of the heavy to light hadrons (D/ ) ratio is strongly dependent on the running of the QCD coupling constant.
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spelling QCD collisional energy loss in an increasingly interacting quark-gluon plasmaQuark gluon plasmaCollisional energy lossRunning coupling constantThe discovery of the jet quenching in central Au + Au collisions at the Relativistic Heavyion Collider (RHIC) at Brookhaven National Laboratory has provided clear evidence for the formation of strongly interacting dense matter. It has been predicted to occur due to the energy loss of high energy partons that propagate through the quark gluon plasma. In this paper we investigate the dependence of the parton energy loss due to elastic scatterings in a parton plasma on the value of the strong coupling and its running with the evolution of the system. We analyze different prescriptions for the QCD coupling and calculate the energy and length dependence of the fractional energy loss. Moreover, the partonic quenching factor for light and heavy quarks is estimated. We found that the predicted enhancement of the heavy to light hadrons (D/ ) ratio is strongly dependent on the running of the QCD coupling constant.2011-10-05T19:45:04Z2011-10-05T19:45:04Z2007info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfGAY DUCATI, Maria Beatriz; GONÇALVES, Victor Paulo Barros; MACKEDANZ, Luiz Fernando. QCD collisional energy loss in an increasingly interacting quark-gluon plasma. International Journal of Modern Physics A, v. 22, p. 3105-3122, 2007. Disponível em: <http://arxiv.org/PS_cache/hep-ph/pdf/0506/0506241v4.pdf> Acesso em: 05 out. 2011.http://repositorio.furg.br/handle/1/1081engDucati, Maria Beatriz de Leone GayGonçalves, Victor Paulo BarrosMackedanz, Luiz Fernandoinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da FURG (RI FURG)instname:Universidade Federal do Rio Grande (FURG)instacron:FURG2011-10-31T18:00:14Zoai:repositorio.furg.br:1/1081Repositório InstitucionalPUBhttps://repositorio.furg.br/oai/request || http://200.19.254.174/oai/requestopendoar:2011-10-31T18:00:14Repositório Institucional da FURG (RI FURG) - Universidade Federal do Rio Grande (FURG)false
dc.title.none.fl_str_mv QCD collisional energy loss in an increasingly interacting quark-gluon plasma
title QCD collisional energy loss in an increasingly interacting quark-gluon plasma
spellingShingle QCD collisional energy loss in an increasingly interacting quark-gluon plasma
Ducati, Maria Beatriz de Leone Gay
Quark gluon plasma
Collisional energy loss
Running coupling constant
title_short QCD collisional energy loss in an increasingly interacting quark-gluon plasma
title_full QCD collisional energy loss in an increasingly interacting quark-gluon plasma
title_fullStr QCD collisional energy loss in an increasingly interacting quark-gluon plasma
title_full_unstemmed QCD collisional energy loss in an increasingly interacting quark-gluon plasma
title_sort QCD collisional energy loss in an increasingly interacting quark-gluon plasma
author Ducati, Maria Beatriz de Leone Gay
author_facet Ducati, Maria Beatriz de Leone Gay
Gonçalves, Victor Paulo Barros
Mackedanz, Luiz Fernando
author_role author
author2 Gonçalves, Victor Paulo Barros
Mackedanz, Luiz Fernando
author2_role author
author
dc.contributor.author.fl_str_mv Ducati, Maria Beatriz de Leone Gay
Gonçalves, Victor Paulo Barros
Mackedanz, Luiz Fernando
dc.subject.por.fl_str_mv Quark gluon plasma
Collisional energy loss
Running coupling constant
topic Quark gluon plasma
Collisional energy loss
Running coupling constant
description The discovery of the jet quenching in central Au + Au collisions at the Relativistic Heavyion Collider (RHIC) at Brookhaven National Laboratory has provided clear evidence for the formation of strongly interacting dense matter. It has been predicted to occur due to the energy loss of high energy partons that propagate through the quark gluon plasma. In this paper we investigate the dependence of the parton energy loss due to elastic scatterings in a parton plasma on the value of the strong coupling and its running with the evolution of the system. We analyze different prescriptions for the QCD coupling and calculate the energy and length dependence of the fractional energy loss. Moreover, the partonic quenching factor for light and heavy quarks is estimated. We found that the predicted enhancement of the heavy to light hadrons (D/ ) ratio is strongly dependent on the running of the QCD coupling constant.
publishDate 2007
dc.date.none.fl_str_mv 2007
2011-10-05T19:45:04Z
2011-10-05T19:45:04Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv GAY DUCATI, Maria Beatriz; GONÇALVES, Victor Paulo Barros; MACKEDANZ, Luiz Fernando. QCD collisional energy loss in an increasingly interacting quark-gluon plasma. International Journal of Modern Physics A, v. 22, p. 3105-3122, 2007. Disponível em: <http://arxiv.org/PS_cache/hep-ph/pdf/0506/0506241v4.pdf> Acesso em: 05 out. 2011.
http://repositorio.furg.br/handle/1/1081
identifier_str_mv GAY DUCATI, Maria Beatriz; GONÇALVES, Victor Paulo Barros; MACKEDANZ, Luiz Fernando. QCD collisional energy loss in an increasingly interacting quark-gluon plasma. International Journal of Modern Physics A, v. 22, p. 3105-3122, 2007. Disponível em: <http://arxiv.org/PS_cache/hep-ph/pdf/0506/0506241v4.pdf> Acesso em: 05 out. 2011.
url http://repositorio.furg.br/handle/1/1081
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositório Institucional da FURG (RI FURG)
instname:Universidade Federal do Rio Grande (FURG)
instacron:FURG
instname_str Universidade Federal do Rio Grande (FURG)
instacron_str FURG
institution FURG
reponame_str Repositório Institucional da FURG (RI FURG)
collection Repositório Institucional da FURG (RI FURG)
repository.name.fl_str_mv Repositório Institucional da FURG (RI FURG) - Universidade Federal do Rio Grande (FURG)
repository.mail.fl_str_mv
_version_ 1813187250562793472

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