Freezing of the QCD coupling constant and solutions of Schwinger-Dyson equations
| dc.contributor.author | Aguilar, A. C. [UNESP] | |
| dc.contributor.author | Mihara, A. [UNESP] | |
| dc.contributor.author | Natale, A. A. [UNESP] | |
| dc.contributor.institution | Universidade Estadual Paulista (UNESP) | |
| dc.date.accessioned | 2022-04-28T19:55:33Z | |
| dc.date.available | 2022-04-28T19:55:33Z | |
| dc.date.issued | 2002-01-01 | |
| dc.description.abstract | We compare phenomenological values of the frozen QCD running coupling constant (as) with two classes of infrared finite solutions obtained through nonperturbative Schwinger-Dyson equations. We use these same solutions with frozen coupling constants as well as their respective nonperturbative gluon propagators to compute the QCD prediction for the asymptotic pion form factor. Agreement between theory and experiment on αs(0) and F π(Q2) is found only for one of the Schwinger-Dyson equation solutions. © 2002 The American Physical Society. | en |
| dc.description.affiliation | Institut de Fisica Teórica Universidade Estadual Paulista, Rua Pamplona 145, 01405-900, Sao Paulo, SP | |
| dc.description.affiliationUnesp | Institut de Fisica Teórica Universidade Estadual Paulista, Rua Pamplona 145, 01405-900, Sao Paulo, SP | |
| dc.identifier | http://dx.doi.org/10.1103/PhysRevD.65.054011 | |
| dc.identifier.citation | Physical Review D, v. 65, n. 5, 2002. | |
| dc.identifier.doi | 10.1103/PhysRevD.65.054011 | |
| dc.identifier.issn | 0556-2821 | |
| dc.identifier.scopus | 2-s2.0-0036496992 | |
| dc.identifier.uri | http://hdl.handle.net/11449/224264 | |
| dc.language.iso | eng | |
| dc.relation.ispartof | Physical Review D | |
| dc.source | Scopus | |
| dc.title | Freezing of the QCD coupling constant and solutions of Schwinger-Dyson equations | en |
| dc.type | Artigo | |
| unesp.campus | Universidade Estadual Paulista (Unesp), Instituto de Física Teórica (IFT), São Paulo | pt |