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Electromagnetic form factor of the pion in the space- and time-like regions within the front-form dynamics

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dc.contributor.authorDe Melo, J. P B C [UNESP]
dc.contributor.authorFrederico, T.
dc.contributor.authorPace, E.
dc.contributor.authorSalmè, G.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionCentro Técnico Aeroespacial
dc.contributor.institutionSezione Tor Vergata
dc.contributor.institutionSezione Roma I
dc.date.accessioned2014-05-27T11:21:02Z
dc.date.available2014-05-27T11:21:02Z
dc.date.issued2004-02-12
dc.description.abstractThe pion electromagnetic form factor is calculated in the space- and time-like regions from -10 (GeV/c)2 up to 10 (GeV/c)2, within a front-form model. The dressed photon vertex where a photon decays in a quark-antiquark pair is depicted generalizing the vector meson dominance ansatz, by means of the vector meson vertex functions. An important feature of our model is the description of the on-mass-shell vertex functions in the valence sector, for the pion and the vector mesons, through the front-form wave functions obtained within a realistic quark model. The theoretical results show an excellent agreement with the data in the space-like region, while in the time-like region the description is quite encouraging. © 2003 Elsevier B.V. All rights reserved.en
dc.description.affiliationInst. de Fís. Teórica Universidade Estadual Paulista, 01405-900 São Paulo, SP
dc.description.affiliationDepartamento de Física Inst. Tecn. da Aeronáutica Centro Técnico Aeroespacial, 12.228-900 Sao Jose dos Campos, SP
dc.description.affiliationDipartimento di Fisica Univ. di Roma Tor Vergata Sezione Tor Vergata, Via della Ricerca Scientifica 1, I-00133 Roma
dc.description.affiliationIst. Nazionale di Fisica Nucleare Sezione Roma I, P.le A. Moro 2, I-00185 Roma
dc.description.affiliationUnespInst. de Fís. Teórica Universidade Estadual Paulista, 01405-900 São Paulo, SP
dc.format.extent75-81
dc.identifierhttp://dx.doi.org/10.1016/j.physletb.2003.11.072
dc.identifier.citationPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, v. 581, n. 1-2, p. 75-81, 2004.
dc.identifier.doi10.1016/j.physletb.2003.11.072
dc.identifier.file2-s2.0-1642431873.pdf
dc.identifier.issn0370-2693
dc.identifier.scopus2-s2.0-1642431873
dc.identifier.urihttp://hdl.handle.net/11449/67655
dc.identifier.wosWOS:000188698200009
dc.language.isoeng
dc.relation.ispartofPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
dc.relation.ispartofjcr4.254
dc.relation.ispartofsjr2,336
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectElectromagnetic form factors
dc.subjectPion
dc.subjectRelativistic quark model
dc.subjectVector-meson dominance
dc.subjectcalculation
dc.subjectelectromagnetic field
dc.subjectmolecular dynamics
dc.subjectmolecular model
dc.subjectphoton
dc.subjectpion
dc.subjectspace
dc.subjecttime
dc.subjectwaveform
dc.titleElectromagnetic form factor of the pion in the space- and time-like regions within the front-form dynamicsen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dspace.entity.typePublication
unesp.author.orcid0000-0002-9209-3464[4]
unesp.author.orcid0000-0002-5497-5490[2]
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Física Teórica (IFT), São Paulopt

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São Paulo - IFT - Instituto de Física Teórica