Fragmentation function in non-equilibrium QCD using closed-time path integral formalism |
| |
Authors: | Gouranga C. Nayak |
| |
Affiliation: | (1) Department of Physics, University of Illinois, Chicago, IL 60607, USA |
| |
Abstract: | In this paper we implement the Schwinger–Keldysh closed-time path integral formalism in non-equilibrium QCD in accordance to the definition of the Collins–Soper fragmentation function. We consider a high-p T parton in QCD medium at initial time τ 0 with an arbitrary non-equilibrium (non-isotropic) distribution function fragmenting to a hadron. We formulate the parton-to-hadron fragmentation function in non-equilibrium QCD in the light-cone quantization formalism. It may be possible to include final-state interactions with the medium via a modification of the Wilson lines in this definition of the non-equilibrium fragmentation function. This may be relevant to the study of hadron production from a quark–gluon plasma at RHIC and LHC. |
| |
Keywords: | KeywordHeading" >PACS 12.39.St 13.87.Fh 13.87.Ce 13.85.Ni |
本文献已被 SpringerLink 等数据库收录! |