Freezing of the QCD coupling constant and solutions of Schwinger-Dyson equations
Nenhuma Miniatura disponível
Data
2002-01-01
Autores
Orientador
Coorientador
Pós-graduação
Curso de graduação
Título da Revista
ISSN da Revista
Título de Volume
Editor
Tipo
Artigo
Direito de acesso
Resumo
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.
Descrição
Palavras-chave
Idioma
Inglês
Como citar
Physical Review D, v. 65, n. 5, 2002.