Altarelli-parisi equation in non-equilibrium QCD

作者：Nayak G C^*

来源：Physics of Particles and Nuclei, 2012, 43(6): 742-748.

DOI：10.1134/S106377961206007X

The Q(2) evolution of fragmentation function in non-equilibrium QCD by using DGLAP evolution equation may be necessary to study hadron formation from quark-gluon plasma at RHIC and LHC. In this paper we study splitting functions in non-equilibrium QCD by using Schwinger-Keldysh closed-time path integral formalism. For quarks and gluons with arbitrary non-equilibrium distribution functions f(q) (p) over right arrow and f(g)(p) over right arrow, we derive expressions for quark and gluon splitting functions in non-equilibrium QCD at leading order in alpha (s) . We make a comparison of these splitting functions with that obtained by Altarelli and Parisi in vacuum. DOI: 10.1134/S106377961206007X

• 出版日期2012-11