Publicação:
QCD tests with an infrared finite gluon propagator and coupling constant

Nenhuma Miniatura disponível

Data

2010-02-01

Orientador

Coorientador

Pós-graduação

Curso de graduação

Título da Revista

ISSN da Revista

Título de Volume

Editor

Elsevier B.V.

Tipo

Carta

Direito de acesso

Acesso abertoAcesso Aberto

Resumo

Recent progress in the solution of Schwinger-Dyson equations, as well as lattice simulation of pure glue QCD, indicate that the gluon propagator and coupling constant are infrared finite. Such non-perturbative information can be introduced in the QCD perturbative expansion in the scheme named Dynamical Perturbation Theory. We exemplify this procedure with the calculation of some two-body non-leptonic annihilation B meson decays, which show agreement with the experimental data in the case of a gluon propagator characterized by a dynamical gluon mass of 500MeV, compatible with the value found in several processes computed with this method. We give a. preliminary account of the application of this procedure at the loop level in the case of the Bjorken sum rule.

Descrição

Palavras-chave

Idioma

Inglês

Como citar

Nuclear Physics B-proceedings Supplements. Amsterdam: Elsevier B.V., v. 199, p. 178-183, 2010.

Itens relacionados

Financiadores

Unidades

Departamentos

Cursos de graduação

Programas de pós-graduação