Universal quark to gluon ratio in medium-induced parton cascade
Abstract
Here, we investigate the radiative break-up of a highly energetic quark or gluon in a high-temperature QCD plasma. Within an inertial range of momenta T << ω << E, where E denotes the energy of the original hard parton (jet) and T the temperature of of the medium, we find that, as a result of the turbulent nature of the underlying parton cascade, the quark to gluon ratio of the soft fragments tends to a universal constant value that is independent of the initial conditions. We discuss implications of this result to jet quenching physics and the problem of thermalization of the quark-gluon plasma in heavy ion collisions.
- Authors:
-
- Univ. of Washington, Seattle, WA (United States); Brookhaven National Lab. (BNL), Upton, NY (United States)
- Univ. of Washington, Seattle, WA (United States); Univ. Bielefeld, Bielefeld (Germany)
- Publication Date:
- Research Org.:
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Nuclear Physics (NP)
- OSTI Identifier:
- 1479273
- Report Number(s):
- BNL-209335-2018-JAAM
Journal ID: ISSN 1029-8479
- Grant/Contract Number:
- SC0012704
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of High Energy Physics (Online)
- Additional Journal Information:
- Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2018; Journal Issue: 9; Journal ID: ISSN 1029-8479
- Publisher:
- Springer Berlin
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; Heavy Ion Phenomenology; Jets
Citation Formats
Mehtar-Tani, Yacine, and Schlichting, Soeren. Universal quark to gluon ratio in medium-induced parton cascade. United States: N. p., 2018.
Web. doi:10.1007/JHEP09(2018)144.
Mehtar-Tani, Yacine, & Schlichting, Soeren. Universal quark to gluon ratio in medium-induced parton cascade. United States. https://doi.org/10.1007/JHEP09(2018)144
Mehtar-Tani, Yacine, and Schlichting, Soeren. Tue .
"Universal quark to gluon ratio in medium-induced parton cascade". United States. https://doi.org/10.1007/JHEP09(2018)144. https://www.osti.gov/servlets/purl/1479273.
@article{osti_1479273,
title = {Universal quark to gluon ratio in medium-induced parton cascade},
author = {Mehtar-Tani, Yacine and Schlichting, Soeren},
abstractNote = {Here, we investigate the radiative break-up of a highly energetic quark or gluon in a high-temperature QCD plasma. Within an inertial range of momenta T << ω << E, where E denotes the energy of the original hard parton (jet) and T the temperature of of the medium, we find that, as a result of the turbulent nature of the underlying parton cascade, the quark to gluon ratio of the soft fragments tends to a universal constant value that is independent of the initial conditions. We discuss implications of this result to jet quenching physics and the problem of thermalization of the quark-gluon plasma in heavy ion collisions.},
doi = {10.1007/JHEP09(2018)144},
journal = {Journal of High Energy Physics (Online)},
number = 9,
volume = 2018,
place = {United States},
year = {Tue Sep 25 00:00:00 EDT 2018},
month = {Tue Sep 25 00:00:00 EDT 2018}
}
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