Additional J/Ψ suppression from high density effects
Autor(a) principal: | |
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Data de Publicação: | 2004 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/181205 |
Resumo: | At high energies the saturation effects associated to the high parton density should modify the behavior of the observables in proton–nucleus and nucleus–nucleus scattering. In this paper we investigate the saturation effects in the nuclear J/Ψ production and estimate the modifications in the energy dependence of the cross section as well as in the length of the nuclear medium. In particular, we calculate the ratio of J/Ψ to Drell–Yan cross sections and show that it is strongly modified if the high density effects are included. Moreover, our results are compared with the data from the NA50 Collaboration and predictions for the RHIC and LHC kinematic regions are presented. We predict an additional J/Ψ suppression associated to the high density effects. |
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Gay Ducati, Maria BeatrizGoncalves, Victor Paulo BarrosMackedanz, Luiz Fernando2018-08-22T02:31:56Z20041434-6044http://hdl.handle.net/10183/181205000420179At high energies the saturation effects associated to the high parton density should modify the behavior of the observables in proton–nucleus and nucleus–nucleus scattering. In this paper we investigate the saturation effects in the nuclear J/Ψ production and estimate the modifications in the energy dependence of the cross section as well as in the length of the nuclear medium. In particular, we calculate the ratio of J/Ψ to Drell–Yan cross sections and show that it is strongly modified if the high density effects are included. Moreover, our results are compared with the data from the NA50 Collaboration and predictions for the RHIC and LHC kinematic regions are presented. We predict an additional J/Ψ suppression associated to the high density effects.application/pdfengEuropean physical journal C: particles and fields. Berlin. Vol. 34, no. 2 (May 2004), p. 229-236Mésons psiCromodinâmica quânticaEspalhamento nucleon-nucleonAdditional J/Ψ suppression from high density effectsEstrangeiroinfo: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:UFRGSORIGINAL000420179.pdfTexto completo (inglês)application/pdf144414http://www.lume.ufrgs.br/bitstream/10183/181205/1/000420179.pdfe65e38825bb31579dd66c17bcb8f7b16MD51TEXT000420179.pdf.txt000420179.pdf.txtExtracted Texttext/plain40332http://www.lume.ufrgs.br/bitstream/10183/181205/2/000420179.pdf.txt0abfc5a9341ace521b73b864b57a5bdfMD52THUMBNAIL000420179.pdf.jpg000420179.pdf.jpgGenerated Thumbnailimage/jpeg2091http://www.lume.ufrgs.br/bitstream/10183/181205/3/000420179.pdf.jpgaac6912261a0895e459b851eab1bacfcMD5310183/1812052018-10-05 07:40:44.158oai:www.lume.ufrgs.br:10183/181205Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2018-10-05T10:40:44Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Additional J/Ψ suppression from high density effects |
title |
Additional J/Ψ suppression from high density effects |
spellingShingle |
Additional J/Ψ suppression from high density effects Gay Ducati, Maria Beatriz Mésons psi Cromodinâmica quântica Espalhamento nucleon-nucleon |
title_short |
Additional J/Ψ suppression from high density effects |
title_full |
Additional J/Ψ suppression from high density effects |
title_fullStr |
Additional J/Ψ suppression from high density effects |
title_full_unstemmed |
Additional J/Ψ suppression from high density effects |
title_sort |
Additional J/Ψ suppression from high density effects |
author |
Gay Ducati, Maria Beatriz |
author_facet |
Gay Ducati, Maria Beatriz Goncalves, Victor Paulo Barros Mackedanz, Luiz Fernando |
author_role |
author |
author2 |
Goncalves, Victor Paulo Barros Mackedanz, Luiz Fernando |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Gay Ducati, Maria Beatriz Goncalves, Victor Paulo Barros Mackedanz, Luiz Fernando |
dc.subject.por.fl_str_mv |
Mésons psi Cromodinâmica quântica Espalhamento nucleon-nucleon |
topic |
Mésons psi Cromodinâmica quântica Espalhamento nucleon-nucleon |
description |
At high energies the saturation effects associated to the high parton density should modify the behavior of the observables in proton–nucleus and nucleus–nucleus scattering. In this paper we investigate the saturation effects in the nuclear J/Ψ production and estimate the modifications in the energy dependence of the cross section as well as in the length of the nuclear medium. In particular, we calculate the ratio of J/Ψ to Drell–Yan cross sections and show that it is strongly modified if the high density effects are included. Moreover, our results are compared with the data from the NA50 Collaboration and predictions for the RHIC and LHC kinematic regions are presented. We predict an additional J/Ψ suppression associated to the high density effects. |
publishDate |
2004 |
dc.date.issued.fl_str_mv |
2004 |
dc.date.accessioned.fl_str_mv |
2018-08-22T02:31:56Z |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
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info:eu-repo/semantics/publishedVersion |
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article |
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publishedVersion |
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http://hdl.handle.net/10183/181205 |
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1434-6044 |
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000420179 |
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1434-6044 000420179 |
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http://hdl.handle.net/10183/181205 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
European physical journal C: particles and fields. Berlin. Vol. 34, no. 2 (May 2004), p. 229-236 |
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info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
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