Centrality and pseudorapidity dependence of the charged-particle multiplicity density in Xe–Xe collisions at √sNN = 5.44 TeV
Autor(a) principal: | |
---|---|
Data de Publicação: | 2019 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/194886 |
Resumo: | In this Letter, the ALICE Collaboration presents the first measurements of the charged-particle multiplicity density, dNch/dη, and total charged-particle multiplicity, Ntotch, in Xe–Xecollisions at a centre-of-mass energy per nucleon–nucleon pair of √sNN=5.44TeV. The measurements are performed as a function of collision centrality over a wide pseudorapidity range of −3.5 <η<5. The values of dNch/dηat mid-rapidity and Ntotchfor central collisions, normalised to the number of nucleons participating in the collision (Npart) as a function of √sNNfollow the trends established in previous heavy-ion measurements. The same quantities are also found to increase as a function of Npart, and up to the 5% most central collisions the trends are the same as the ones observed in Pb–Pbat a similar energy. For more central collisions, the Xe–Xescaled multiplicities exceed those in Pb–Pbfor a similar Npart. The results are compared to phenomenological models and theoretical calculations based on different mechanisms for particle production in nuclear collisions. All considered models describe the data reasonably well within15%. |
id |
UFRGS-2_7a9bfbe5b71334ebcdc5577984b23b57 |
---|---|
oai_identifier_str |
oai:www.lume.ufrgs.br:10183/194886 |
network_acronym_str |
UFRGS-2 |
network_name_str |
Repositório Institucional da UFRGS |
repository_id_str |
|
spelling |
Acharya, ShreyasiGay Ducati, Maria BeatrizPereira, Luis GustavoPezzi, Rafael PerettiALICE Collaboration2019-06-01T02:39:30Z20190370-2693http://hdl.handle.net/10183/194886001091070In this Letter, the ALICE Collaboration presents the first measurements of the charged-particle multiplicity density, dNch/dη, and total charged-particle multiplicity, Ntotch, in Xe–Xecollisions at a centre-of-mass energy per nucleon–nucleon pair of √sNN=5.44TeV. The measurements are performed as a function of collision centrality over a wide pseudorapidity range of −3.5 <η<5. The values of dNch/dηat mid-rapidity and Ntotchfor central collisions, normalised to the number of nucleons participating in the collision (Npart) as a function of √sNNfollow the trends established in previous heavy-ion measurements. The same quantities are also found to increase as a function of Npart, and up to the 5% most central collisions the trends are the same as the ones observed in Pb–Pbat a similar energy. For more central collisions, the Xe–Xescaled multiplicities exceed those in Pb–Pbfor a similar Npart. The results are compared to phenomenological models and theoretical calculations based on different mechanisms for particle production in nuclear collisions. All considered models describe the data reasonably well within15%.application/pdfengPhysics letters. B. Amsterdam. Vol. 790 (Mar. 2019), p. 35-48Aceleradores de partículasColisao de ions pesadosCentrality and pseudorapidity dependence of the charged-particle multiplicity density in Xe–Xe collisions at √sNN = 5.44 TeVEstrangeiroinfo: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:UFRGSTEXT001091070.pdf.txt001091070.pdf.txtExtracted Texttext/plain85421http://www.lume.ufrgs.br/bitstream/10183/194886/2/001091070.pdf.txtf96a58a8463791a7ec0d12ec88baec95MD52ORIGINAL001091070.pdfTexto completo (inglês)application/pdf1151438http://www.lume.ufrgs.br/bitstream/10183/194886/1/001091070.pdf79f440ec3a8d28434ae02b3ee5554871MD5110183/1948862023-11-12 04:24:47.685837oai:www.lume.ufrgs.br:10183/194886Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-11-12T06:24:47Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Centrality and pseudorapidity dependence of the charged-particle multiplicity density in Xe–Xe collisions at √sNN = 5.44 TeV |
title |
Centrality and pseudorapidity dependence of the charged-particle multiplicity density in Xe–Xe collisions at √sNN = 5.44 TeV |
spellingShingle |
Centrality and pseudorapidity dependence of the charged-particle multiplicity density in Xe–Xe collisions at √sNN = 5.44 TeV Acharya, Shreyasi Aceleradores de partículas Colisao de ions pesados |
title_short |
Centrality and pseudorapidity dependence of the charged-particle multiplicity density in Xe–Xe collisions at √sNN = 5.44 TeV |
title_full |
Centrality and pseudorapidity dependence of the charged-particle multiplicity density in Xe–Xe collisions at √sNN = 5.44 TeV |
title_fullStr |
Centrality and pseudorapidity dependence of the charged-particle multiplicity density in Xe–Xe collisions at √sNN = 5.44 TeV |
title_full_unstemmed |
Centrality and pseudorapidity dependence of the charged-particle multiplicity density in Xe–Xe collisions at √sNN = 5.44 TeV |
title_sort |
Centrality and pseudorapidity dependence of the charged-particle multiplicity density in Xe–Xe collisions at √sNN = 5.44 TeV |
author |
Acharya, Shreyasi |
author_facet |
Acharya, Shreyasi Gay Ducati, Maria Beatriz Pereira, Luis Gustavo Pezzi, Rafael Peretti ALICE Collaboration |
author_role |
author |
author2 |
Gay Ducati, Maria Beatriz Pereira, Luis Gustavo Pezzi, Rafael Peretti ALICE Collaboration |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Acharya, Shreyasi Gay Ducati, Maria Beatriz Pereira, Luis Gustavo Pezzi, Rafael Peretti ALICE Collaboration |
dc.subject.por.fl_str_mv |
Aceleradores de partículas Colisao de ions pesados |
topic |
Aceleradores de partículas Colisao de ions pesados |
description |
In this Letter, the ALICE Collaboration presents the first measurements of the charged-particle multiplicity density, dNch/dη, and total charged-particle multiplicity, Ntotch, in Xe–Xecollisions at a centre-of-mass energy per nucleon–nucleon pair of √sNN=5.44TeV. The measurements are performed as a function of collision centrality over a wide pseudorapidity range of −3.5 <η<5. The values of dNch/dηat mid-rapidity and Ntotchfor central collisions, normalised to the number of nucleons participating in the collision (Npart) as a function of √sNNfollow the trends established in previous heavy-ion measurements. The same quantities are also found to increase as a function of Npart, and up to the 5% most central collisions the trends are the same as the ones observed in Pb–Pbat a similar energy. For more central collisions, the Xe–Xescaled multiplicities exceed those in Pb–Pbfor a similar Npart. The results are compared to phenomenological models and theoretical calculations based on different mechanisms for particle production in nuclear collisions. All considered models describe the data reasonably well within15%. |
publishDate |
2019 |
dc.date.accessioned.fl_str_mv |
2019-06-01T02:39:30Z |
dc.date.issued.fl_str_mv |
2019 |
dc.type.driver.fl_str_mv |
Estrangeiro 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://hdl.handle.net/10183/194886 |
dc.identifier.issn.pt_BR.fl_str_mv |
0370-2693 |
dc.identifier.nrb.pt_BR.fl_str_mv |
001091070 |
identifier_str_mv |
0370-2693 001091070 |
url |
http://hdl.handle.net/10183/194886 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Physics letters. B. Amsterdam. Vol. 790 (Mar. 2019), p. 35-48 |
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 UFRGS instname:Universidade Federal do Rio Grande do Sul (UFRGS) instacron:UFRGS |
instname_str |
Universidade Federal do Rio Grande do Sul (UFRGS) |
instacron_str |
UFRGS |
institution |
UFRGS |
reponame_str |
Repositório Institucional da UFRGS |
collection |
Repositório Institucional da UFRGS |
bitstream.url.fl_str_mv |
http://www.lume.ufrgs.br/bitstream/10183/194886/2/001091070.pdf.txt http://www.lume.ufrgs.br/bitstream/10183/194886/1/001091070.pdf |
bitstream.checksum.fl_str_mv |
f96a58a8463791a7ec0d12ec88baec95 79f440ec3a8d28434ae02b3ee5554871 |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 |
repository.name.fl_str_mv |
Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS) |
repository.mail.fl_str_mv |
|
_version_ |
1798487402715545600 |