Linear and non-linear flow mode in Pb–Pb collisions at √sNN=2.76TeV
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/172569 |
Resumo: | The second and the third order anisotropic flow, V2and V3, are mostly determined by the corresponding initial spatial anisotropy coefficients, ε2and ε3, in the initial density distribution. In addition to their dependence on the same order initial anisotropy coefficient, higher order anisotropic flow, Vn(n >3), can also have a significant contribution from lower order initial anisotropy coefficients, which leads to mode-coupling effects. In this Letter we investigate the linear and non-linear modes in higher order anisotropic flow Vnfor n =4, 5, 6 with the ALICE detector at the Large Hadron Collider. The measurements are done for particles in the pseudorapidity range |η| <0.8and the transverse momentum range 0.2 <pT<5.0GeV/cas a function of collision centrality. The results are compared with theoretical calculations and provide important constraints on the initial conditions, including initial spatial geometry and its fluctuations, as well as the ratio of the shear viscosity to entropy density of the produced system. |
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Acharya, ShreyasiGay Ducati, Maria BeatrizPereira, Luis GustavoPezzi, Rafael PerettiALICE Collaboration2018-02-16T02:29:24Z20170370-2693http://hdl.handle.net/10183/172569001053877The second and the third order anisotropic flow, V2and V3, are mostly determined by the corresponding initial spatial anisotropy coefficients, ε2and ε3, in the initial density distribution. In addition to their dependence on the same order initial anisotropy coefficient, higher order anisotropic flow, Vn(n >3), can also have a significant contribution from lower order initial anisotropy coefficients, which leads to mode-coupling effects. In this Letter we investigate the linear and non-linear modes in higher order anisotropic flow Vnfor n =4, 5, 6 with the ALICE detector at the Large Hadron Collider. The measurements are done for particles in the pseudorapidity range |η| <0.8and the transverse momentum range 0.2 <pT<5.0GeV/cas a function of collision centrality. The results are compared with theoretical calculations and provide important constraints on the initial conditions, including initial spatial geometry and its fluctuations, as well as the ratio of the shear viscosity to entropy density of the produced system.application/pdfengPhysics letters. B. Amsterdam. Vol. 773 (Oct. 2017), p. 68-80Aceleradores de partículasColisao de ions pesadosLinear and non-linear flow mode in Pb–Pb collisions at √sNN=2.76TeVEstrangeiroinfo: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:UFRGSORIGINAL001053877.pdf001053877.pdfTexto completo (inglês)application/pdf967641http://www.lume.ufrgs.br/bitstream/10183/172569/1/001053877.pdf19d9371aea67150ec7b66ec2e31d930dMD51TEXT001053877.pdf.txt001053877.pdf.txtExtracted Texttext/plain79110http://www.lume.ufrgs.br/bitstream/10183/172569/2/001053877.pdf.txt0b7549f6e711952bfe3b3e474d5a3ff6MD52THUMBNAIL001053877.pdf.jpg001053877.pdf.jpgGenerated Thumbnailimage/jpeg1994http://www.lume.ufrgs.br/bitstream/10183/172569/3/001053877.pdf.jpg2d2604a35570049411c79aa91bb588ffMD5310183/1725692023-11-29 04:25:22.064731oai:www.lume.ufrgs.br:10183/172569Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-11-29T06:25:22Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Linear and non-linear flow mode in Pb–Pb collisions at √sNN=2.76TeV |
title |
Linear and non-linear flow mode in Pb–Pb collisions at √sNN=2.76TeV |
spellingShingle |
Linear and non-linear flow mode in Pb–Pb collisions at √sNN=2.76TeV Acharya, Shreyasi Aceleradores de partículas Colisao de ions pesados |
title_short |
Linear and non-linear flow mode in Pb–Pb collisions at √sNN=2.76TeV |
title_full |
Linear and non-linear flow mode in Pb–Pb collisions at √sNN=2.76TeV |
title_fullStr |
Linear and non-linear flow mode in Pb–Pb collisions at √sNN=2.76TeV |
title_full_unstemmed |
Linear and non-linear flow mode in Pb–Pb collisions at √sNN=2.76TeV |
title_sort |
Linear and non-linear flow mode in Pb–Pb collisions at √sNN=2.76TeV |
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 |
The second and the third order anisotropic flow, V2and V3, are mostly determined by the corresponding initial spatial anisotropy coefficients, ε2and ε3, in the initial density distribution. In addition to their dependence on the same order initial anisotropy coefficient, higher order anisotropic flow, Vn(n >3), can also have a significant contribution from lower order initial anisotropy coefficients, which leads to mode-coupling effects. In this Letter we investigate the linear and non-linear modes in higher order anisotropic flow Vnfor n =4, 5, 6 with the ALICE detector at the Large Hadron Collider. The measurements are done for particles in the pseudorapidity range |η| <0.8and the transverse momentum range 0.2 <pT<5.0GeV/cas a function of collision centrality. The results are compared with theoretical calculations and provide important constraints on the initial conditions, including initial spatial geometry and its fluctuations, as well as the ratio of the shear viscosity to entropy density of the produced system. |
publishDate |
2017 |
dc.date.issued.fl_str_mv |
2017 |
dc.date.accessioned.fl_str_mv |
2018-02-16T02:29:24Z |
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/10183/172569 |
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0370-2693 |
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001053877 |
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0370-2693 001053877 |
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http://hdl.handle.net/10183/172569 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Physics letters. B. Amsterdam. Vol. 773 (Oct. 2017), p. 68-80 |
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openAccess |
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