Update on the status of hadronic squeezed correlations at RHIC energies
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da FURG (RI FURG) |
Texto Completo: | http://repositorio.furg.br/handle/1/3365 |
Resumo: | In high-energy heavy-ion collisions, a hot and dense medium is formed, where the hadronic masses may be shifted from their asymptotic values. If this mass modiˇcation occurs, squeezed back-to-back correlations (BBC) of particleÄantiparticle pairs are predicted to appear, both in the fermionic (fBBC) and in the bosonic (bBBC) sectors. Although they have unlimited intensity even for ˇnite-size expanding systems, these hadronic squeezed correlations are very sensitive to their time emission distribution. Here we discuss results in case this time emission is parameterized by a L evy-type distribution, showing that it reduces the signal even more dramatically than a Lorentzian distribution, which already reduces the intensity of the effect by orders of magnitude, as compared to the sudden emission. However, we show that the signal could still survive if the duration of the process is short, and if the effect is searched for lighter mesons, such as kaons. We compare some of our results to recent PHENIX preliminary data on squeezed correlations of K+K − pairs. |
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Update on the status of hadronic squeezed correlations at RHIC energiesIn high-energy heavy-ion collisions, a hot and dense medium is formed, where the hadronic masses may be shifted from their asymptotic values. If this mass modiˇcation occurs, squeezed back-to-back correlations (BBC) of particleÄantiparticle pairs are predicted to appear, both in the fermionic (fBBC) and in the bosonic (bBBC) sectors. Although they have unlimited intensity even for ˇnite-size expanding systems, these hadronic squeezed correlations are very sensitive to their time emission distribution. Here we discuss results in case this time emission is parameterized by a L evy-type distribution, showing that it reduces the signal even more dramatically than a Lorentzian distribution, which already reduces the intensity of the effect by orders of magnitude, as compared to the sudden emission. However, we show that the signal could still survive if the duration of the process is short, and if the effect is searched for lighter mesons, such as kaons. We compare some of our results to recent PHENIX preliminary data on squeezed correlations of K+K − pairs.2013-05-06T17:47:34Z2013-05-06T17:47:34Z2011info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfPADULA, Sandra dos Santos; DUDEK, Danuce Marcele; SOCOLOWSKI JUNIOR, Otávio. Update on the status of hadronic squeezed correlations at RHIC energies. Physics of Particles and Nuclei Letters, v. 8, p. 122-126, 2011. Disponível em: <http://arxiv.org/pdf/1101.0087v2.pdf>. Acesso em: 06 mai. 2013.http://repositorio.furg.br/handle/1/3365engPadula, Sandra dos SantosDudek, Danuce MarceleSocolowski Junior, Otavioinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da FURG (RI FURG)instname:Universidade Federal do Rio Grande (FURG)instacron:FURG2013-05-08T17:12:33Zoai:repositorio.furg.br:1/3365Repositório InstitucionalPUBhttps://repositorio.furg.br/oai/request || http://200.19.254.174/oai/requestopendoar:2013-05-08T17:12:33Repositório Institucional da FURG (RI FURG) - Universidade Federal do Rio Grande (FURG)false |
dc.title.none.fl_str_mv |
Update on the status of hadronic squeezed correlations at RHIC energies |
title |
Update on the status of hadronic squeezed correlations at RHIC energies |
spellingShingle |
Update on the status of hadronic squeezed correlations at RHIC energies Padula, Sandra dos Santos |
title_short |
Update on the status of hadronic squeezed correlations at RHIC energies |
title_full |
Update on the status of hadronic squeezed correlations at RHIC energies |
title_fullStr |
Update on the status of hadronic squeezed correlations at RHIC energies |
title_full_unstemmed |
Update on the status of hadronic squeezed correlations at RHIC energies |
title_sort |
Update on the status of hadronic squeezed correlations at RHIC energies |
author |
Padula, Sandra dos Santos |
author_facet |
Padula, Sandra dos Santos Dudek, Danuce Marcele Socolowski Junior, Otavio |
author_role |
author |
author2 |
Dudek, Danuce Marcele Socolowski Junior, Otavio |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Padula, Sandra dos Santos Dudek, Danuce Marcele Socolowski Junior, Otavio |
description |
In high-energy heavy-ion collisions, a hot and dense medium is formed, where the hadronic masses may be shifted from their asymptotic values. If this mass modiˇcation occurs, squeezed back-to-back correlations (BBC) of particleÄantiparticle pairs are predicted to appear, both in the fermionic (fBBC) and in the bosonic (bBBC) sectors. Although they have unlimited intensity even for ˇnite-size expanding systems, these hadronic squeezed correlations are very sensitive to their time emission distribution. Here we discuss results in case this time emission is parameterized by a L evy-type distribution, showing that it reduces the signal even more dramatically than a Lorentzian distribution, which already reduces the intensity of the effect by orders of magnitude, as compared to the sudden emission. However, we show that the signal could still survive if the duration of the process is short, and if the effect is searched for lighter mesons, such as kaons. We compare some of our results to recent PHENIX preliminary data on squeezed correlations of K+K − pairs. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011 2013-05-06T17:47:34Z 2013-05-06T17:47:34Z |
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 |
PADULA, Sandra dos Santos; DUDEK, Danuce Marcele; SOCOLOWSKI JUNIOR, Otávio. Update on the status of hadronic squeezed correlations at RHIC energies. Physics of Particles and Nuclei Letters, v. 8, p. 122-126, 2011. Disponível em: <http://arxiv.org/pdf/1101.0087v2.pdf>. Acesso em: 06 mai. 2013. http://repositorio.furg.br/handle/1/3365 |
identifier_str_mv |
PADULA, Sandra dos Santos; DUDEK, Danuce Marcele; SOCOLOWSKI JUNIOR, Otávio. Update on the status of hadronic squeezed correlations at RHIC energies. Physics of Particles and Nuclei Letters, v. 8, p. 122-126, 2011. Disponível em: <http://arxiv.org/pdf/1101.0087v2.pdf>. Acesso em: 06 mai. 2013. |
url |
http://repositorio.furg.br/handle/1/3365 |
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_ |
1807384374590570496 |