Pion-distribution amplitude within the instanton model
| dc.contributor.author | Anikin, I. V. | |
| dc.contributor.author | Dorokhov, A. E. | |
| dc.contributor.author | Tomio, L. [UNESP] | |
| dc.contributor.institution | Joint Institute for Nuclear Research | |
| dc.contributor.institution | Universidade Estadual Paulista (Unesp) | |
| dc.date.accessioned | 2014-05-27T11:20:17Z | |
| dc.date.available | 2014-05-27T11:20:17Z | |
| dc.date.issued | 2001-07-01 | |
| dc.description.abstract | The 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.affiliation | Joint Institute for Nuclear Research, Dubna, Moscow oblast, 141980 | |
| dc.description.affiliation | Inst. de Fisica Teorica Univ. Estadial Paulista (UNESP), Rua Pamplona 145, BR-01405-900 São Paulo, SP | |
| dc.description.affiliationUnesp | Inst. de Fisica Teorica Univ. Estadial Paulista (UNESP), Rua Pamplona 145, BR-01405-900 São Paulo, SP | |
| dc.format.extent | 1329-1336 | |
| dc.identifier | http://dx.doi.org/10.1134/1.1389562 | |
| dc.identifier.citation | Physics of Atomic Nuclei, v. 64, n. 7, p. 1329-1336, 2001. | |
| dc.identifier.doi | 10.1134/1.1389562 | |
| dc.identifier.issn | 1063-7788 | |
| dc.identifier.scopus | 2-s2.0-0035537339 | |
| dc.identifier.uri | http://hdl.handle.net/11449/66539 | |
| dc.language.iso | eng | |
| dc.relation.ispartof | Physics of Atomic Nuclei | |
| dc.relation.ispartofjcr | 0.524 | |
| dc.relation.ispartofsjr | 0,327 | |
| dc.rights.accessRights | Acesso restrito | |
| dc.source | Scopus | |
| dc.title | Pion-distribution amplitude within the instanton model | en |
| dc.type | Artigo | |
| dcterms.license | http://www.springer.com/open+access/authors+rights | |
| dspace.entity.type | Publication | |
| unesp.campus | Universidade Estadual Paulista (UNESP), Instituto de Física Teórica (IFT), São Paulo | pt |