The small x behavior of the gluon strucutre function from total cross-sections
Carregando...
Data
Orientador
Coorientador
Pós-graduação
Curso de graduação
Título da Revista
ISSN da Revista
Título de Volume
Editor
World Scientific Publ Co Pte Ltd
Tipo
Artigo
Direito de acesso
Acesso restrito
Resumo
Within a QCD-based eikonal model with a dynamical infrared gluon mass scale we discuss how the small x behavior of the gluon distribution function at moderate Q(2) is directly related to the rise of total hadronic cross-sections. In this model the rise of total cross-sections is driven by gluon-gluon semihard scattering processes, where the behavior of the small x gluon distribtuion function exhibits the power law xg(x, Q(2)) = h(Q(2))x(-epsilon). Assuming that the Q(2) scale is proportional to the dynamical gluon mass one, we show that the values of h(Q(2)) obtained in this model are compatible with an earlier result based on a specific nonperturbative Pomeron model. We discuss the implications of this picture for the behavior of input valence-like gluon distributions at low resolution scales.
Descrição
Palavras-chave
dynamical gluon mass, gluon structure function
Idioma
Inglês
Citação
International Journal of Modern Physics A. Singapore: World Scientific Publ Co Pte Ltd, v. 23, n. 1, p. 151-165, 2008.
