Jet Quenching at RHIC and LHC and the Fragmentation Function in Vacuum
High Energy Physics - Phenomenology
2017-05-18 v1 High Energy Physics - Lattice
Nuclear Theory
Abstract
The value of the parton to hadron fragmentation function in QCD in vacuum (for example from proton-proton collisions at high energy colliders) is directly/indirectly used in the literature to study the jet quenching and the hadron production from quark-gluon plasma at RHIC and LHC. In this paper we show that this is not possible because, unlike the perturbative propagator in non-equilibrium QCD, the parton to hadron fragmentation function is a non-perturbative quantity in QCD and hence it is not possible to decompose the fragmentation function in non-equilibrium QCD into the vacuum part and the medium part.
Cite
@article{arxiv.1705.04878,
title = {Jet Quenching at RHIC and LHC and the Fragmentation Function in Vacuum},
author = {Gouranga C Nayak},
journal= {arXiv preprint arXiv:1705.04878},
year = {2017}
}
Comments
18 pages latex