Covariant spectator theory for the electromagnetic three-nucleon form factors: Complete impulse approximation

Detalhes bibliográficos
Autor(a) principal: Pinto, Sérgio Alexandre
Data de Publicação: 2009
Outros Autores: Stadler, Alfred, Gross, Franz
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10174/6143
Resumo: We present the first calculations of the electromagnetic form factors of 3 He and 3 H within the framework of the Covariant Spectator Theory (CST). This first exploratory study concentrates on the sensitivity of the form factors to the strength of the scalar meson-nucleon off-shell coupling, known from previous studies to have a strong influence on the three-body binding energy. Results presented here were obtained using the complete impulse approximation (CIA), which includes contributions of relativistic origin that appear as two-body corrections in a nonrelativistic framework, such as “Z-graphs,” but omits other two and three-body currents. We compare our results to nonrelativistic calculations augmented by relativistic corrections of O(v/c)2.
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spelling Covariant spectator theory for the electromagnetic three-nucleon form factors: Complete impulse approximationThree-nucleon bound statesElectromagnetic form factorsCovariant Spectator TheoryRelativistic effectsWe present the first calculations of the electromagnetic form factors of 3 He and 3 H within the framework of the Covariant Spectator Theory (CST). This first exploratory study concentrates on the sensitivity of the form factors to the strength of the scalar meson-nucleon off-shell coupling, known from previous studies to have a strong influence on the three-body binding energy. Results presented here were obtained using the complete impulse approximation (CIA), which includes contributions of relativistic origin that appear as two-body corrections in a nonrelativistic framework, such as “Z-graphs,” but omits other two and three-body currents. We compare our results to nonrelativistic calculations augmented by relativistic corrections of O(v/c)2.The American Physical Society2012-11-30T12:32:02Z2012-11-302009-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10174/6143http://hdl.handle.net/10174/6143engPhys. Rev. C 79, 054006 (2009)http://link.aps.org/doi/10.1103/PhysRevC.79.054006sapinto@cii.fc.ul.ptstadler@uevora.ptgross@jlab.org347Pinto, Sérgio AlexandreStadler, AlfredGross, Franzinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-01-03T18:45:27Zoai:dspace.uevora.pt:10174/6143Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:01:01.095096Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Covariant spectator theory for the electromagnetic three-nucleon form factors: Complete impulse approximation
title Covariant spectator theory for the electromagnetic three-nucleon form factors: Complete impulse approximation
spellingShingle Covariant spectator theory for the electromagnetic three-nucleon form factors: Complete impulse approximation
Pinto, Sérgio Alexandre
Three-nucleon bound states
Electromagnetic form factors
Covariant Spectator Theory
Relativistic effects
title_short Covariant spectator theory for the electromagnetic three-nucleon form factors: Complete impulse approximation
title_full Covariant spectator theory for the electromagnetic three-nucleon form factors: Complete impulse approximation
title_fullStr Covariant spectator theory for the electromagnetic three-nucleon form factors: Complete impulse approximation
title_full_unstemmed Covariant spectator theory for the electromagnetic three-nucleon form factors: Complete impulse approximation
title_sort Covariant spectator theory for the electromagnetic three-nucleon form factors: Complete impulse approximation
author Pinto, Sérgio Alexandre
author_facet Pinto, Sérgio Alexandre
Stadler, Alfred
Gross, Franz
author_role author
author2 Stadler, Alfred
Gross, Franz
author2_role author
author
dc.contributor.author.fl_str_mv Pinto, Sérgio Alexandre
Stadler, Alfred
Gross, Franz
dc.subject.por.fl_str_mv Three-nucleon bound states
Electromagnetic form factors
Covariant Spectator Theory
Relativistic effects
topic Three-nucleon bound states
Electromagnetic form factors
Covariant Spectator Theory
Relativistic effects
description We present the first calculations of the electromagnetic form factors of 3 He and 3 H within the framework of the Covariant Spectator Theory (CST). This first exploratory study concentrates on the sensitivity of the form factors to the strength of the scalar meson-nucleon off-shell coupling, known from previous studies to have a strong influence on the three-body binding energy. Results presented here were obtained using the complete impulse approximation (CIA), which includes contributions of relativistic origin that appear as two-body corrections in a nonrelativistic framework, such as “Z-graphs,” but omits other two and three-body currents. We compare our results to nonrelativistic calculations augmented by relativistic corrections of O(v/c)2.
publishDate 2009
dc.date.none.fl_str_mv 2009-01-01T00:00:00Z
2012-11-30T12:32:02Z
2012-11-30
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10174/6143
http://hdl.handle.net/10174/6143
url http://hdl.handle.net/10174/6143
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Phys. Rev. C 79, 054006 (2009)
http://link.aps.org/doi/10.1103/PhysRevC.79.054006
sapinto@cii.fc.ul.pt
stadler@uevora.pt
gross@jlab.org
347
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv The American Physical Society
publisher.none.fl_str_mv The American Physical Society
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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