GENERAL REDUCTION FORMALISM FOR NLO CALCULATIONS IN PQCD

Fizika B (Zagreb)

GORAN  DUPLAN¹ 

关键词: exclusive processes;    perturbative QCD;    next-to-leading order;   

DOI  :  

学科分类：物理（综合）

来源: Fizika B: a journal of experimental and theoretical physics

【 摘 要 】

We discuss a generally applicable and systematic method to represent an arbitrarytensor one-loop Feynman integral, with N external lines and massless propagators, in termsof a basic set of eight scalar Feynman integrals with 2, 3 and 4 external lines. Todemonstrate the practicality of the method, we calculate one of the one-loop Feynmandiagrams with 6 external lines, which contribute to the hard-scattering amplitude of theprocess g g

【 授权许可】

Unknown