Spacelike and timelike pion electromagnetic form factor and Fock state components within the light-front dynamics

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dc.contributor.authorde Melo, JPBC
dc.contributor.authorFrederico, T.
dc.contributor.authorPace, E.
dc.contributor.authorSalme, G.
dc.contributor.institutionUniv Cruzeiro Sul
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionCtr Aerosp Technol
dc.contributor.institutionUniv Roma Tor Vergata
dc.contributor.institutionIst Nazl Fis Nucl
dc.date.accessioned2014-05-20T14:07:33Z
dc.date.available2014-05-20T14:07:33Z
dc.date.issued2006-04-01
dc.description.abstractThe simultaneous investigation of the pion electromagnetic form factor in the space- and timelike regions within a light-front model allows one to address the issue of nonvalence components of the pion and photon wave functions. Our relativistic approach is based on a microscopic vector-meson-dominance model for the dressed vertex where a photon decays in a quark-antiquark pair, and on a simple parametrization for the emission or absorption of a pion by a quark. The results show an excellent agreement in the space like region up to -10 (GeV/c)(2), while in timelike region the model produces reasonable results up to 10 (GeV/c)(2).en
dc.description.affiliationUniv Cruzeiro Sul, Ctr Ciências Exatas & tecnol, BR-08060070 São Paulo, Brazil
dc.description.affiliationUniv Estadual Paulista, Inst Fis Teor, BR-01405900 São Paulo, Brazil
dc.description.affiliationCtr Aerosp Technol, Inst Tecnol Aeronaut, Dept Fis, BR-12228900 São Paulo, Brazil
dc.description.affiliationUniv Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy
dc.description.affiliationIst Nazl Fis Nucl, Sez Tor Vergata, I-00133 Rome, Italy
dc.description.affiliationIst Nazl Fis Nucl, Sez Roma 1, I-00185 Rome, Italy
dc.description.affiliationUnespUniv Estadual Paulista, Inst Fis Teor, BR-01405900 São Paulo, Brazil
dc.format.extent35
dc.identifierhttp://dx.doi.org/10.1103/PhysRevD.73.074013
dc.identifier.citationPhysical Review D. College Pk: Amer Physical Soc, v. 73, n. 7, 35 p., 2006.
dc.identifier.doi10.1103/PhysRevD.73.074013
dc.identifier.fileWOS000237158500036.pdf
dc.identifier.issn1550-7998
dc.identifier.urihttp://hdl.handle.net/11449/23718
dc.identifier.wosWOS:000237158500036
dc.language.isoeng
dc.publisherAmer Physical Soc
dc.relation.ispartofPhysical Review D
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.titleSpacelike and timelike pion electromagnetic form factor and Fock state components within the light-front dynamicsen
dc.typeArtigo
dcterms.licensehttp://publish.aps.org/authors/transfer-of-copyright-agreement
dcterms.rightsHolderAmer Physical Soc
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Física Teórica (IFT), São Paulopt

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