A phenomenological analysis of the longitudinal structure function at small x and low Q2

Detalhes bibliográficos
Autor(a) principal: Goncalves, Victor Paulo Barros
Data de Publicação: 2004
Outros Autores: Machado, Magno Valério Trindade
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/181293
Resumo: The longitudinal structure function in deep-inelastic scattering is one of the observables from which the gluon distribution can be unfolded. Consequently, this observable can be used to constrain the QCD dynamics at small x. In this work we compare the predictions of distinct QCD models with the recent experimental results for FL(x,Q2) at small x and low Q2 obtained by the H1 Collaboration. We focus mainly on the color dipole approach, selecting those models which include saturation effects. Such models are suitable at this kinematical region and also resum a wide class of higher-twist contributions to the observables. Therefore, we investigate the influence of these corrections to FL in the present region of interest.
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spelling Goncalves, Victor Paulo BarrosMachado, Magno Valério Trindade2018-08-23T02:31:33Z20041434-6044http://hdl.handle.net/10183/181293000504701The longitudinal structure function in deep-inelastic scattering is one of the observables from which the gluon distribution can be unfolded. Consequently, this observable can be used to constrain the QCD dynamics at small x. In this work we compare the predictions of distinct QCD models with the recent experimental results for FL(x,Q2) at small x and low Q2 obtained by the H1 Collaboration. We focus mainly on the color dipole approach, selecting those models which include saturation effects. Such models are suitable at this kinematical region and also resum a wide class of higher-twist contributions to the observables. Therefore, we investigate the influence of these corrections to FL in the present region of interest.application/pdfengEuropean physical journal C: particles and fields. Berlin. Vol. 37, no. 3 (Oct. 2004), p. 299-305Espalhamento inelastico profundoGluonsCromodinâmica quânticaFuncoes de estruturaAnalise fenomenologicaA phenomenological analysis of the longitudinal structure function at small x and low Q2Estrangeiroinfo: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:UFRGSORIGINAL000504701.pdfTexto completo (inglês)application/pdf167576http://www.lume.ufrgs.br/bitstream/10183/181293/1/000504701.pdfe0339aba5aac8b4d7186e0a2395aba54MD51TEXT000504701.pdf.txt000504701.pdf.txtExtracted Texttext/plain32452http://www.lume.ufrgs.br/bitstream/10183/181293/2/000504701.pdf.txt5959242f688d275e807cd4fd1e9a9cb7MD52THUMBNAIL000504701.pdf.jpg000504701.pdf.jpgGenerated Thumbnailimage/jpeg2115http://www.lume.ufrgs.br/bitstream/10183/181293/3/000504701.pdf.jpg7a8513453147f502587eb207e76fb25cMD5310183/1812932024-02-11 06:04:48.931771oai:www.lume.ufrgs.br:10183/181293Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2024-02-11T08:04:48Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv A phenomenological analysis of the longitudinal structure function at small x and low Q2
title A phenomenological analysis of the longitudinal structure function at small x and low Q2
spellingShingle A phenomenological analysis of the longitudinal structure function at small x and low Q2
Goncalves, Victor Paulo Barros
Espalhamento inelastico profundo
Gluons
Cromodinâmica quântica
Funcoes de estrutura
Analise fenomenologica
title_short A phenomenological analysis of the longitudinal structure function at small x and low Q2
title_full A phenomenological analysis of the longitudinal structure function at small x and low Q2
title_fullStr A phenomenological analysis of the longitudinal structure function at small x and low Q2
title_full_unstemmed A phenomenological analysis of the longitudinal structure function at small x and low Q2
title_sort A phenomenological analysis of the longitudinal structure function at small x and low Q2
author Goncalves, Victor Paulo Barros
author_facet Goncalves, Victor Paulo Barros
Machado, Magno Valério Trindade
author_role author
author2 Machado, Magno Valério Trindade
author2_role author
dc.contributor.author.fl_str_mv Goncalves, Victor Paulo Barros
Machado, Magno Valério Trindade
dc.subject.por.fl_str_mv Espalhamento inelastico profundo
Gluons
Cromodinâmica quântica
Funcoes de estrutura
Analise fenomenologica
topic Espalhamento inelastico profundo
Gluons
Cromodinâmica quântica
Funcoes de estrutura
Analise fenomenologica
description The longitudinal structure function in deep-inelastic scattering is one of the observables from which the gluon distribution can be unfolded. Consequently, this observable can be used to constrain the QCD dynamics at small x. In this work we compare the predictions of distinct QCD models with the recent experimental results for FL(x,Q2) at small x and low Q2 obtained by the H1 Collaboration. We focus mainly on the color dipole approach, selecting those models which include saturation effects. Such models are suitable at this kinematical region and also resum a wide class of higher-twist contributions to the observables. Therefore, we investigate the influence of these corrections to FL in the present region of interest.
publishDate 2004
dc.date.issued.fl_str_mv 2004
dc.date.accessioned.fl_str_mv 2018-08-23T02:31:33Z
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dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/181293
dc.identifier.issn.pt_BR.fl_str_mv 1434-6044
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dc.language.iso.fl_str_mv eng
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dc.relation.ispartof.pt_BR.fl_str_mv European physical journal C: particles and fields. Berlin. Vol. 37, no. 3 (Oct. 2004), p. 299-305
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