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Title: Non-Abelian feature of parton energy loss in energy dependence of jet quenching in high-energy heavy-ion collisions

Abstract

One of the non-Abelian features of parton energy loss is the ratio {delta}E{sub g}/{delta}E{sub q}=9/4 between gluon and quark jets. Since jet production rate is dominated by quark jets at high x{sub T}=2p{sub T}/{radical}(s) and by gluon jets at low x{sub T}, high p{sub T} hadron suppression in high-energy heavy-ion collisions should reflect such a non-Abelian feature. Within a leading-order perturbative QCD parton model that incorporates transverse expansion and Woods-Saxon nuclear distribution, the energy dependence of large p{sub T}{approx}5-20 GeV/c hadron suppression is found to be sensitive to the non-Abelian feature of parton energy loss and could be tested by data from low-energy runs at Brookhaven National Laboratory's relativistic heavy-ion collider or data from the large hadron collider.

Authors:
 [1];  [2]
  1. Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026 (China)
  2. Nuclear Science Division, MS70R0319, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 (United States)
Publication Date:
OSTI Identifier:
20695897
Resource Type:
Journal Article
Journal Name:
Physical Review. C, Nuclear Physics
Additional Journal Information:
Journal Volume: 71; Journal Issue: 1; Other Information: DOI: 10.1103/PhysRevC.71.014903; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0556-2813
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; BROOKHAVEN RHIC; CERN LHC; ENERGY DEPENDENCE; ENERGY LOSSES; GEV RANGE; GLUONS; HADRONS; HEAVY ION REACTIONS; JET MODEL; PARTON MODEL; PARTONS; QUANTUM CHROMODYNAMICS; QUARKS; TRANSVERSE MOMENTUM; WOODS-SAXON POTENTIAL

Citation Formats

Qun, Wang, Institut fuer Theoretische Physik, Johann Wolfgang Goethe-Universitaet, Postfach 111932, D-60054 Frankfurt, and Xinnian, Wang. Non-Abelian feature of parton energy loss in energy dependence of jet quenching in high-energy heavy-ion collisions. United States: N. p., 2005. Web. doi:10.1103/PhysRevC.71.014903.
Qun, Wang, Institut fuer Theoretische Physik, Johann Wolfgang Goethe-Universitaet, Postfach 111932, D-60054 Frankfurt, & Xinnian, Wang. Non-Abelian feature of parton energy loss in energy dependence of jet quenching in high-energy heavy-ion collisions. United States. https://doi.org/10.1103/PhysRevC.71.014903
Qun, Wang, Institut fuer Theoretische Physik, Johann Wolfgang Goethe-Universitaet, Postfach 111932, D-60054 Frankfurt, and Xinnian, Wang. Sat . "Non-Abelian feature of parton energy loss in energy dependence of jet quenching in high-energy heavy-ion collisions". United States. https://doi.org/10.1103/PhysRevC.71.014903.
@article{osti_20695897,
title = {Non-Abelian feature of parton energy loss in energy dependence of jet quenching in high-energy heavy-ion collisions},
author = {Qun, Wang and Institut fuer Theoretische Physik, Johann Wolfgang Goethe-Universitaet, Postfach 111932, D-60054 Frankfurt and Xinnian, Wang},
abstractNote = {One of the non-Abelian features of parton energy loss is the ratio {delta}E{sub g}/{delta}E{sub q}=9/4 between gluon and quark jets. Since jet production rate is dominated by quark jets at high x{sub T}=2p{sub T}/{radical}(s) and by gluon jets at low x{sub T}, high p{sub T} hadron suppression in high-energy heavy-ion collisions should reflect such a non-Abelian feature. Within a leading-order perturbative QCD parton model that incorporates transverse expansion and Woods-Saxon nuclear distribution, the energy dependence of large p{sub T}{approx}5-20 GeV/c hadron suppression is found to be sensitive to the non-Abelian feature of parton energy loss and could be tested by data from low-energy runs at Brookhaven National Laboratory's relativistic heavy-ion collider or data from the large hadron collider.},
doi = {10.1103/PhysRevC.71.014903},
url = {https://www.osti.gov/biblio/20695897}, journal = {Physical Review. C, Nuclear Physics},
issn = {0556-2813},
number = 1,
volume = 71,
place = {United States},
year = {2005},
month = {1}
}