J/Ψ photoproduction in peripheral AA collisions
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/10183/172592 |
Resumo: | The exclusive photoproduction of the heavy vector mesons J=Ψ is investigated in the context of peripheral lead-lead collisions for the energies available at the LHC, ps ¼ 2.76 TeV and sp ¼ 5.02 TeV. Using the light-cone color dipole formalism, the rapidity distribution was calculated in two centrality bins at 50%–70% and 70%–90% in order to evaluate its robustness in extrapolating down to a smaller impact parameter. A modified photon flux is introduced, without change in the photonuclear cross section in relation to the ultraperipheral (UPC) case. Results were obtained for the two regions analyzed, which presented a maximum difference of 27% in frontal rapidity for the two regions. Comparing the results for ps ¼ 2.76 TeV and ps ¼ 5.02 TeV, an increase was verified of approximately half the one obtained in the ultraperipheral regime in the central rapidity region. |
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Gay Ducati, Maria BeatrizMartins, Sony2018-02-16T02:29:51Z20171550-7998http://hdl.handle.net/10183/172592001053531The exclusive photoproduction of the heavy vector mesons J=Ψ is investigated in the context of peripheral lead-lead collisions for the energies available at the LHC, ps ¼ 2.76 TeV and sp ¼ 5.02 TeV. Using the light-cone color dipole formalism, the rapidity distribution was calculated in two centrality bins at 50%–70% and 70%–90% in order to evaluate its robustness in extrapolating down to a smaller impact parameter. A modified photon flux is introduced, without change in the photonuclear cross section in relation to the ultraperipheral (UPC) case. Results were obtained for the two regions analyzed, which presented a maximum difference of 27% in frontal rapidity for the two regions. Comparing the results for ps ¼ 2.76 TeV and ps ¼ 5.02 TeV, an increase was verified of approximately half the one obtained in the ultraperipheral regime in the central rapidity region.application/pdfengPhysical review. D, Particles, fields, gravitation, and cosmology. College Park. Vol. 96, no. 5 (Sept. 2017), 056014, 5 p.Aceleradores de partículasColisao de ions pesadosFotoproducao de mesonsMésons psiJ/Ψ photoproduction in peripheral AA collisionsEstrangeiroinfo: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:UFRGSORIGINAL001053531.pdf001053531.pdfTexto completo (inglês)application/pdf397292http://www.lume.ufrgs.br/bitstream/10183/172592/1/001053531.pdf41956ecf68613ce031a0fe6460c670d2MD51TEXT001053531.pdf.txt001053531.pdf.txtExtracted Texttext/plain21385http://www.lume.ufrgs.br/bitstream/10183/172592/2/001053531.pdf.txt0cdb04654c09c70841cc22f963dec492MD52THUMBNAIL001053531.pdf.jpg001053531.pdf.jpgGenerated Thumbnailimage/jpeg1932http://www.lume.ufrgs.br/bitstream/10183/172592/3/001053531.pdf.jpg700154ddc689a5ce72d4f217cc0b590cMD5310183/1725922018-10-26 10:23:12.004oai:www.lume.ufrgs.br:10183/172592Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2018-10-26T13:23:12Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
J/Ψ photoproduction in peripheral AA collisions |
title |
J/Ψ photoproduction in peripheral AA collisions |
spellingShingle |
J/Ψ photoproduction in peripheral AA collisions Gay Ducati, Maria Beatriz Aceleradores de partículas Colisao de ions pesados Fotoproducao de mesons Mésons psi |
title_short |
J/Ψ photoproduction in peripheral AA collisions |
title_full |
J/Ψ photoproduction in peripheral AA collisions |
title_fullStr |
J/Ψ photoproduction in peripheral AA collisions |
title_full_unstemmed |
J/Ψ photoproduction in peripheral AA collisions |
title_sort |
J/Ψ photoproduction in peripheral AA collisions |
author |
Gay Ducati, Maria Beatriz |
author_facet |
Gay Ducati, Maria Beatriz Martins, Sony |
author_role |
author |
author2 |
Martins, Sony |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Gay Ducati, Maria Beatriz Martins, Sony |
dc.subject.por.fl_str_mv |
Aceleradores de partículas Colisao de ions pesados Fotoproducao de mesons Mésons psi |
topic |
Aceleradores de partículas Colisao de ions pesados Fotoproducao de mesons Mésons psi |
description |
The exclusive photoproduction of the heavy vector mesons J=Ψ is investigated in the context of peripheral lead-lead collisions for the energies available at the LHC, ps ¼ 2.76 TeV and sp ¼ 5.02 TeV. Using the light-cone color dipole formalism, the rapidity distribution was calculated in two centrality bins at 50%–70% and 70%–90% in order to evaluate its robustness in extrapolating down to a smaller impact parameter. A modified photon flux is introduced, without change in the photonuclear cross section in relation to the ultraperipheral (UPC) case. Results were obtained for the two regions analyzed, which presented a maximum difference of 27% in frontal rapidity for the two regions. Comparing the results for ps ¼ 2.76 TeV and ps ¼ 5.02 TeV, an increase was verified of approximately half the one obtained in the ultraperipheral regime in the central rapidity region. |
publishDate |
2017 |
dc.date.issued.fl_str_mv |
2017 |
dc.date.accessioned.fl_str_mv |
2018-02-16T02:29:51Z |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
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info:eu-repo/semantics/publishedVersion |
format |
article |
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publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/172592 |
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1550-7998 |
dc.identifier.nrb.pt_BR.fl_str_mv |
001053531 |
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1550-7998 001053531 |
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http://hdl.handle.net/10183/172592 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Physical review. D, Particles, fields, gravitation, and cosmology. College Park. Vol. 96, no. 5 (Sept. 2017), 056014, 5 p. |
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openAccess |
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application/pdf |
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