On regularizing the infrared singularities in QCD NLO splitting functions with the new Principal Value prescription

Autor(es)

Gituliar, O. ^[1] ; Jadach, S. ^[1] ; Kusina, A. ^[2] ; Skrzypek, M. ^[1]

Afiliação do(s) autor(es)

^[1] Polish Acad Sci, Inst Nucl Phys, PL-31342 Krakow - Poland

^[2] So Methodist Univ, Dallas, TX 75275 - USA

• Tipo de documento: Artigo Científico
• Fonte: Physics Letters B; v. 732, p. 218-232, MAY 1 2014.
• Citações Web of Science: 9

Resumo

We propose a modified use of the Principal Value prescription for regularizing the infrared singularities in the light-cone axial gauge by applying it to all singularities in the light-cone plus component of integration momentum. The modification is motivated by and applied to the re-calculation of the QCD NLO splitting functions for the purpose of Monte Carlo implementations. The final results agree with the standard PV prescription whereas contributions from separate graphs get simplified. (C) 2014 The Authors. Published by Elsevier B.V. (AU)

• Processo FAPESP: 11/08781-6 - O estudo de núcleos fora da linha de estabilidade com o sistema RIBRAS
• Beneficiário: Rubens Lichtenthäler Filho
• Modalidade de apoio: Auxílio à Pesquisa - Regular