Pion-distribution amplitude within the instanton model

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dc.contributor.authorAnikin, I. V.
dc.contributor.authorDorokhov, A. E.
dc.contributor.authorTomio, L. [UNESP]
dc.contributor.institutionJoint Institute for Nuclear Research
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:20:17Z
dc.date.available2014-05-27T11:20:17Z
dc.date.issued2001-07-01
dc.description.abstractThe leading-twist pion-distribution amplitude is obtained at a low normalization scale of order ρc (inverse average size of an instanton). Pion dynamics, consistent with gauge invariance and low-energy theorems, is considered within the instanton vacuum model. The results are QCD-evolved to higher momentum-transfer values and are in agreement with recent data from CLEO on the pion transition form factor. It is also shown that some previous calculations violate the axial Ward-Takahashi identity. © 2001 MAIK Nauka/Interperiodica.en
dc.description.affiliationJoint Institute for Nuclear Research, Dubna, Moscow oblast, 141980
dc.description.affiliationInst. de Fisica Teorica Univ. Estadial Paulista (UNESP), Rua Pamplona 145, BR-01405-900 São Paulo, SP
dc.description.affiliationUnespInst. de Fisica Teorica Univ. Estadial Paulista (UNESP), Rua Pamplona 145, BR-01405-900 São Paulo, SP
dc.format.extent1329-1336
dc.identifierhttp://dx.doi.org/10.1134/1.1389562
dc.identifier.citationPhysics of Atomic Nuclei, v. 64, n. 7, p. 1329-1336, 2001.
dc.identifier.doi10.1134/1.1389562
dc.identifier.issn1063-7788
dc.identifier.scopus2-s2.0-0035537339
dc.identifier.urihttp://hdl.handle.net/11449/66539
dc.language.isoeng
dc.relation.ispartofPhysics of Atomic Nuclei
dc.relation.ispartofjcr0.524
dc.relation.ispartofsjr0,327
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.titlePion-distribution amplitude within the instanton modelen
dc.typeArtigo
dcterms.licensehttp://www.springer.com/open+access/authors+rights
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Física Teórica (IFT), São Paulopt

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