Source chaoticity in relativistic heavy ion collisions at SPS and RHIC

Bibliographic Details
Main Author: Morita,Kenji
Publication Date: 2007
Other Authors: Muroya,Shin, Nakamura,Hiroki
Format: Article
Language: eng
Source: Brazilian Journal of Physics
Download full: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332007000500006
Summary: We investigate degree of coherence of pion sources produced in relativistic heavy ion collisions using multi-particle interferometry. In order to obtain ''true'' chaoticity, lambdatrue from two-pion correlation functions measured in experiments, we make a correction for long-lived resonance decay contributions. Using this lambdatrue and the weight factor which are obtained from parameter fitted to two- and three-pion correlation function, we calculate a chaotic fraction e and the number of coherent sources alpha for different colliding energies. The result gives constraints on the source and shows an increase of the minimum number of alpha with multiplicity, although multiplicity independent chaoticity is not excluded.
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spelling Source chaoticity in relativistic heavy ion collisions at SPS and RHICRelativistic heavy ion collisionsPion interferometryWe investigate degree of coherence of pion sources produced in relativistic heavy ion collisions using multi-particle interferometry. In order to obtain ''true'' chaoticity, lambdatrue from two-pion correlation functions measured in experiments, we make a correction for long-lived resonance decay contributions. Using this lambdatrue and the weight factor which are obtained from parameter fitted to two- and three-pion correlation function, we calculate a chaotic fraction e and the number of coherent sources alpha for different colliding energies. The result gives constraints on the source and shows an increase of the minimum number of alpha with multiplicity, although multiplicity independent chaoticity is not excluded.Sociedade Brasileira de Física2007-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332007000500006Brazilian Journal of Physics v.37 n.2c 2007reponame:Brazilian Journal of Physicsinstname:Sociedade Brasileira de Física (SBF)instacron:SBF10.1590/S0103-97332007000500006info:eu-repo/semantics/openAccessMorita,KenjiMuroya,ShinNakamura,Hirokieng2016-07-19T00:00:00Zoai:scielo:S0103-97332007000500006Revistahttp://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:2016-07-19T00:00Brazilian Journal of Physics - Sociedade Brasileira de Física (SBF)false
dc.title.none.fl_str_mv Source chaoticity in relativistic heavy ion collisions at SPS and RHIC
title Source chaoticity in relativistic heavy ion collisions at SPS and RHIC
spellingShingle Source chaoticity in relativistic heavy ion collisions at SPS and RHIC
Morita,Kenji
Relativistic heavy ion collisions
Pion interferometry
title_short Source chaoticity in relativistic heavy ion collisions at SPS and RHIC
title_full Source chaoticity in relativistic heavy ion collisions at SPS and RHIC
title_fullStr Source chaoticity in relativistic heavy ion collisions at SPS and RHIC
title_full_unstemmed Source chaoticity in relativistic heavy ion collisions at SPS and RHIC
title_sort Source chaoticity in relativistic heavy ion collisions at SPS and RHIC
author Morita,Kenji
author_facet Morita,Kenji
Muroya,Shin
Nakamura,Hiroki
author_role author
author2 Muroya,Shin
Nakamura,Hiroki
author2_role author
author
dc.contributor.author.fl_str_mv Morita,Kenji
Muroya,Shin
Nakamura,Hiroki
dc.subject.por.fl_str_mv Relativistic heavy ion collisions
Pion interferometry
topic Relativistic heavy ion collisions
Pion interferometry
description We investigate degree of coherence of pion sources produced in relativistic heavy ion collisions using multi-particle interferometry. In order to obtain ''true'' chaoticity, lambdatrue from two-pion correlation functions measured in experiments, we make a correction for long-lived resonance decay contributions. Using this lambdatrue and the weight factor which are obtained from parameter fitted to two- and three-pion correlation function, we calculate a chaotic fraction e and the number of coherent sources alpha for different colliding energies. The result gives constraints on the source and shows an increase of the minimum number of alpha with multiplicity, although multiplicity independent chaoticity is not excluded.
publishDate 2007
dc.date.none.fl_str_mv 2007-06-01
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=S0103-97332007000500006
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332007000500006
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-97332007000500006
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.2c 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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