Direct photon production and jet energy-loss in small systems
High Energy Physics - Phenomenology
2016-01-14 v1 Nuclear Experiment
Nuclear Theory
Abstract
Two types of penetrating probes, direct photon and QCD jets, are investigated in the background of a small and rapidly expanding droplet of quark-gluon plasma. The additional thermal electromagnetic radiation results in a 50\% enhancement of the direct photons. In high multiplicity p+Pb collisions, jets can lose a sizeable fraction of their initial energy, leading to a charged hadron of 0.8 at a transverse momentum around 10\,GeV. Those two proposed measurements can help understand the apparent collective behaviour observed in small collision systems.
Keywords
Cite
@article{arxiv.1601.03070,
title = {Direct photon production and jet energy-loss in small systems},
author = {Chun Shen and Chanwook Park and Jean-François Paquet and Gabriel S. Denicol and Sangyong Jeon and Charles Gale},
journal= {arXiv preprint arXiv:1601.03070},
year = {2016}
}
Comments
4 pages. Contribution to the Proceedings of Quark Matter 2015, Kobe, Japan