Bound state structure and electromagnetic form factor beyond the ladder approximation

Detalhes bibliográficos
Autor(a) principal: Gigante, V.
Data de Publicação: 2017
Outros Autores: Nogueira, J. H. Alvarenga, Ydrefors, E., Gutierrez, C. [UNESP], Karmanov, V. A., Frederico, T.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1103/PhysRevD.95.056012
http://hdl.handle.net/11449/174652
Resumo: We investigate the response of the bound state structure of a two-boson system, within a Yukawa model with a scalar boson exchange, to the inclusion of the cross-ladder contribution to the ladder kernel of the Bethe-Salpeter equation. The equation is solved by means of the Nakanishi integral representation and light-front projection. The valence light-front wave function and electromagnetic form factor, considering both ladder and ladder plus cross-ladder kernels, are studied in detail. Their asymptotic forms are found to be quite independent of the inclusion of the cross-ladder kernel, for a given binding energy. The asymptotic decrease of form factor agrees with the counting rules. This analysis can be generalized to fermionic systems, with a wide application in the study of the meson structure.
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spelling Bound state structure and electromagnetic form factor beyond the ladder approximationWe investigate the response of the bound state structure of a two-boson system, within a Yukawa model with a scalar boson exchange, to the inclusion of the cross-ladder contribution to the ladder kernel of the Bethe-Salpeter equation. The equation is solved by means of the Nakanishi integral representation and light-front projection. The valence light-front wave function and electromagnetic form factor, considering both ladder and ladder plus cross-ladder kernels, are studied in detail. Their asymptotic forms are found to be quite independent of the inclusion of the cross-ladder kernel, for a given binding energy. The asymptotic decrease of form factor agrees with the counting rules. This analysis can be generalized to fermionic systems, with a wide application in the study of the meson structure.Laboratório de Física Teórica e Computacional-LFTC Universidade Cruzeiro Do sulInstituto Tecnológico de Aeronáutica DCTAInstituto de Física Teórica UNESPLebedev Physical Institute, Leninsky Prospekt 53Instituto de Física Teórica UNESPUniversidade Cruzeiro Do sulDCTAUniversidade Estadual Paulista (Unesp)Lebedev Physical InstituteGigante, V.Nogueira, J. H. AlvarengaYdrefors, E.Gutierrez, C. [UNESP]Karmanov, V. A.Frederico, T.2018-12-11T17:12:15Z2018-12-11T17:12:15Z2017-03-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://dx.doi.org/10.1103/PhysRevD.95.056012Physical Review D, v. 95, n. 5, 2017.2470-00292470-0010http://hdl.handle.net/11449/17465210.1103/PhysRevD.95.0560122-s2.0-850198847292-s2.0-85019884729.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPhysical Review D1,8011,801info:eu-repo/semantics/openAccess2023-10-13T06:05:38Zoai:repositorio.unesp.br:11449/174652Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T14:46:31.960546Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Bound state structure and electromagnetic form factor beyond the ladder approximation
title Bound state structure and electromagnetic form factor beyond the ladder approximation
spellingShingle Bound state structure and electromagnetic form factor beyond the ladder approximation
Gigante, V.
title_short Bound state structure and electromagnetic form factor beyond the ladder approximation
title_full Bound state structure and electromagnetic form factor beyond the ladder approximation
title_fullStr Bound state structure and electromagnetic form factor beyond the ladder approximation
title_full_unstemmed Bound state structure and electromagnetic form factor beyond the ladder approximation
title_sort Bound state structure and electromagnetic form factor beyond the ladder approximation
author Gigante, V.
author_facet Gigante, V.
Nogueira, J. H. Alvarenga
Ydrefors, E.
Gutierrez, C. [UNESP]
Karmanov, V. A.
Frederico, T.
author_role author
author2 Nogueira, J. H. Alvarenga
Ydrefors, E.
Gutierrez, C. [UNESP]
Karmanov, V. A.
Frederico, T.
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade Cruzeiro Do sul
DCTA
Universidade Estadual Paulista (Unesp)
Lebedev Physical Institute
dc.contributor.author.fl_str_mv Gigante, V.
Nogueira, J. H. Alvarenga
Ydrefors, E.
Gutierrez, C. [UNESP]
Karmanov, V. A.
Frederico, T.
description We investigate the response of the bound state structure of a two-boson system, within a Yukawa model with a scalar boson exchange, to the inclusion of the cross-ladder contribution to the ladder kernel of the Bethe-Salpeter equation. The equation is solved by means of the Nakanishi integral representation and light-front projection. The valence light-front wave function and electromagnetic form factor, considering both ladder and ladder plus cross-ladder kernels, are studied in detail. Their asymptotic forms are found to be quite independent of the inclusion of the cross-ladder kernel, for a given binding energy. The asymptotic decrease of form factor agrees with the counting rules. This analysis can be generalized to fermionic systems, with a wide application in the study of the meson structure.
publishDate 2017
dc.date.none.fl_str_mv 2017-03-01
2018-12-11T17:12:15Z
2018-12-11T17:12:15Z
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://dx.doi.org/10.1103/PhysRevD.95.056012
Physical Review D, v. 95, n. 5, 2017.
2470-0029
2470-0010
http://hdl.handle.net/11449/174652
10.1103/PhysRevD.95.056012
2-s2.0-85019884729
2-s2.0-85019884729.pdf
url http://dx.doi.org/10.1103/PhysRevD.95.056012
http://hdl.handle.net/11449/174652
identifier_str_mv Physical Review D, v. 95, n. 5, 2017.
2470-0029
2470-0010
10.1103/PhysRevD.95.056012
2-s2.0-85019884729
2-s2.0-85019884729.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Physical Review D
1,801
1,801
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1808128414680350720

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