Running coupling and pomeron loop effects on inclusive and diffractive DIS cross sections

Autor(es)

Ducati, M. B. Gay ^{[1, 2]} ; de Oliveira, E. G. ^[3] ; de Santana Amaral, J. T. ^[4]

Afiliação do(s) autor(es)

^[1] Univ Fed Rio Grande do Sul, Inst Fis, BR-91501970 Porto Alegre, RS - Brazil

^[2] CERN, PH TH, CH-1211 Geneva 23 - Switzerland

^[3] Univ Sao Paulo, Inst Fis, BR-05315970 Sao Paulo - Brazil

^[4] Univ Fed Pelotas, Inst Fis & Matemat, BR-96010900 Pelotas, RS - Brazil

• Tipo de documento: Artigo Científico
• Fonte: EUROPEAN PHYSICAL JOURNAL C; v. 72, n. 11 NOV 2012.
• Citações Web of Science: 1

Resumo

Within the framework of a (1 + 1)-dimensional model which mimics high-energy QCD, we study the behavior of the cross sections for inclusive and diffractive deep inelastic gamma{*}h scattering cross sections. We analyze the cases of both fixed and running coupling within the mean-field approximation, in which the evolution of the scattering amplitude is described by the Balitsky-Kovchegov equation, and also through the pomeron loop equations, which include in the evolution the gluon number fluctuations. In the diffractive case, similarly to the inclusive one, suppression of the diffusive scaling, as a consequence of the inclusion of the running of the coupling, is observed. (AU)

• Processo FAPESP: 11/50597-8 - Cromodinâmica quântica em colisões de altas energias
• Beneficiário: Emmanuel Gräve de Oliveira
• Linha de fomento: Bolsas no Brasil - Pós-Doutorado