Photoproduction of excited baryons in the 1 /Nc expansion of QCD

Detalhes bibliográficos
Autor(a) principal: Scoccola,N. N.
Data de Publicação: 2008
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Journal of Physics
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332008000400013
Resumo: We present results for the photoproduction helicity amplitudes of excited baryons obtained in the context of the 1 /Nc expansion of QCD. The results show that, in order to get a satisfactory description of the observed photoproduction amplitudes, the sub-leading corrections in 1/Nc are important. We also find that, while one-body effective operators are dominant, there is some evidence for the need of two-body effects which, in general, are not included in quark model calculations.
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spelling Photoproduction of excited baryons in the 1 /Nc expansion of QCDExcited baryon photoproductionLarge Nc QCDWe present results for the photoproduction helicity amplitudes of excited baryons obtained in the context of the 1 /Nc expansion of QCD. The results show that, in order to get a satisfactory description of the observed photoproduction amplitudes, the sub-leading corrections in 1/Nc are important. We also find that, while one-body effective operators are dominant, there is some evidence for the need of two-body effects which, in general, are not included in quark model calculations.Sociedade Brasileira de Física2008-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332008000400013Brazilian Journal of Physics v.38 n.3b 2008reponame:Brazilian Journal of Physicsinstname:Sociedade Brasileira de Física (SBF)instacron:SBF10.1590/S0103-97332008000400013info:eu-repo/semantics/openAccessScoccola,N. N.eng2008-11-18T00:00:00Zoai:scielo:S0103-97332008000400013Revistahttp://www.sbfisica.org.br/v1/home/index.php/pt/ONGhttps://old.scielo.br/oai/scielo-oai.phpsbfisica@sbfisica.org.br||sbfisica@sbfisica.org.br1678-44480103-9733opendoar:2008-11-18T00:00Brazilian Journal of Physics - Sociedade Brasileira de Física (SBF)false
dc.title.none.fl_str_mv Photoproduction of excited baryons in the 1 /Nc expansion of QCD
title Photoproduction of excited baryons in the 1 /Nc expansion of QCD
spellingShingle Photoproduction of excited baryons in the 1 /Nc expansion of QCD
Scoccola,N. N.
Excited baryon photoproduction
Large Nc QCD
title_short Photoproduction of excited baryons in the 1 /Nc expansion of QCD
title_full Photoproduction of excited baryons in the 1 /Nc expansion of QCD
title_fullStr Photoproduction of excited baryons in the 1 /Nc expansion of QCD
title_full_unstemmed Photoproduction of excited baryons in the 1 /Nc expansion of QCD
title_sort Photoproduction of excited baryons in the 1 /Nc expansion of QCD
author Scoccola,N. N.
author_facet Scoccola,N. N.
author_role author
dc.contributor.author.fl_str_mv Scoccola,N. N.
dc.subject.por.fl_str_mv Excited baryon photoproduction
Large Nc QCD
topic Excited baryon photoproduction
Large Nc QCD
description We present results for the photoproduction helicity amplitudes of excited baryons obtained in the context of the 1 /Nc expansion of QCD. The results show that, in order to get a satisfactory description of the observed photoproduction amplitudes, the sub-leading corrections in 1/Nc are important. We also find that, while one-body effective operators are dominant, there is some evidence for the need of two-body effects which, in general, are not included in quark model calculations.
publishDate 2008
dc.date.none.fl_str_mv 2008-09-01
dc.type.driver.fl_str_mv 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://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332008000400013
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332008000400013
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-97332008000400013
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Física
publisher.none.fl_str_mv Sociedade Brasileira de Física
dc.source.none.fl_str_mv Brazilian Journal of Physics v.38 n.3b 2008
reponame:Brazilian Journal of Physics
instname:Sociedade Brasileira de Física (SBF)
instacron:SBF
instname_str Sociedade Brasileira de Física (SBF)
instacron_str SBF
institution SBF
reponame_str Brazilian Journal of Physics
collection Brazilian Journal of Physics
repository.name.fl_str_mv Brazilian Journal of Physics - Sociedade Brasileira de Física (SBF)
repository.mail.fl_str_mv sbfisica@sbfisica.org.br||sbfisica@sbfisica.org.br
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