Recent femtoscopy results from NA49: evidence for a non-Gaussian tail in the 3-dimensional two-pion emission source at SPS

Detalhes bibliográficos
Autor(a) principal: Chung,P.
Data de Publicação: 2007
Outros Autores: Danielewicz,P.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Journal of Physics
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332007000600016
Resumo: The NA49 experiment at CERN SPS has acquired a huge data set of Pb+Pb events over a broad range of energy and centrality during the last several years. This high statistics data set, coupled with a state-of-the-art analysis technique, allows for the first model-independent extraction and energy scan of 3D emission sources for pion pairs at SPS energies. These 3D two-pion emission sources provide new insights into the nature of a long-range source previously reported by PHENIX at RHIC. The new results indicate that the two-pion source function is essentially Gaussian from 20 AGeV to 80 AGeV but it displays significant non-Gaussian tails at 158 AGeV.
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spelling Recent femtoscopy results from NA49: evidence for a non-Gaussian tail in the 3-dimensional two-pion emission source at SPSCorrelationInterferometryIntensity interferometryCartesian harmonicsCorrelation anisotropyThe NA49 experiment at CERN SPS has acquired a huge data set of Pb+Pb events over a broad range of energy and centrality during the last several years. This high statistics data set, coupled with a state-of-the-art analysis technique, allows for the first model-independent extraction and energy scan of 3D emission sources for pion pairs at SPS energies. These 3D two-pion emission sources provide new insights into the nature of a long-range source previously reported by PHENIX at RHIC. The new results indicate that the two-pion source function is essentially Gaussian from 20 AGeV to 80 AGeV but it displays significant non-Gaussian tails at 158 AGeV.Sociedade Brasileira de Física2007-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332007000600016Brazilian Journal of Physics v.37 n.3a 2007reponame:Brazilian Journal of Physicsinstname:Sociedade Brasileira de Física (SBF)instacron:SBF10.1590/S0103-97332007000600016info:eu-repo/semantics/openAccessChung,P.Danielewicz,P.eng2007-09-24T00:00:00Zoai:scielo:S0103-97332007000600016Revistahttp://www.sbfisica.org.br/v1/home/index.php/pt/ONGhttps://old.scielo.br/oai/scielo-oai.phpsbfisica@sbfisica.org.br||sbfisica@sbfisica.org.br1678-44480103-9733opendoar:2007-09-24T00:00Brazilian Journal of Physics - Sociedade Brasileira de Física (SBF)false
dc.title.none.fl_str_mv Recent femtoscopy results from NA49: evidence for a non-Gaussian tail in the 3-dimensional two-pion emission source at SPS
title Recent femtoscopy results from NA49: evidence for a non-Gaussian tail in the 3-dimensional two-pion emission source at SPS
spellingShingle Recent femtoscopy results from NA49: evidence for a non-Gaussian tail in the 3-dimensional two-pion emission source at SPS
Chung,P.
Correlation
Interferometry
Intensity interferometry
Cartesian harmonics
Correlation anisotropy
title_short Recent femtoscopy results from NA49: evidence for a non-Gaussian tail in the 3-dimensional two-pion emission source at SPS
title_full Recent femtoscopy results from NA49: evidence for a non-Gaussian tail in the 3-dimensional two-pion emission source at SPS
title_fullStr Recent femtoscopy results from NA49: evidence for a non-Gaussian tail in the 3-dimensional two-pion emission source at SPS
title_full_unstemmed Recent femtoscopy results from NA49: evidence for a non-Gaussian tail in the 3-dimensional two-pion emission source at SPS
title_sort Recent femtoscopy results from NA49: evidence for a non-Gaussian tail in the 3-dimensional two-pion emission source at SPS
author Chung,P.
author_facet Chung,P.
Danielewicz,P.
author_role author
author2 Danielewicz,P.
author2_role author
dc.contributor.author.fl_str_mv Chung,P.
Danielewicz,P.
dc.subject.por.fl_str_mv Correlation
Interferometry
Intensity interferometry
Cartesian harmonics
Correlation anisotropy
topic Correlation
Interferometry
Intensity interferometry
Cartesian harmonics
Correlation anisotropy
description The NA49 experiment at CERN SPS has acquired a huge data set of Pb+Pb events over a broad range of energy and centrality during the last several years. This high statistics data set, coupled with a state-of-the-art analysis technique, allows for the first model-independent extraction and energy scan of 3D emission sources for pion pairs at SPS energies. These 3D two-pion emission sources provide new insights into the nature of a long-range source previously reported by PHENIX at RHIC. The new results indicate that the two-pion source function is essentially Gaussian from 20 AGeV to 80 AGeV but it displays significant non-Gaussian tails at 158 AGeV.
publishDate 2007
dc.date.none.fl_str_mv 2007-09-01
dc.type.driver.fl_str_mv 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://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332007000600016
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332007000600016
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-97332007000600016
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Física
publisher.none.fl_str_mv Sociedade Brasileira de Física
dc.source.none.fl_str_mv Brazilian Journal of Physics v.37 n.3a 2007
reponame:Brazilian Journal of Physics
instname:Sociedade Brasileira de Física (SBF)
instacron:SBF
instname_str Sociedade Brasileira de Física (SBF)
instacron_str SBF
institution SBF
reponame_str Brazilian Journal of Physics
collection Brazilian Journal of Physics
repository.name.fl_str_mv Brazilian Journal of Physics - Sociedade Brasileira de Física (SBF)
repository.mail.fl_str_mv sbfisica@sbfisica.org.br||sbfisica@sbfisica.org.br
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