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Title: Heavy quark energy loss in nuclear medium

Abstract

Multiple scattering, modified fragmentation functions and radiative energy loss of a heavy quark propagating in a nuclear medium are investigated in perturbative QCD. Because of the quark mass dependence of the gluon formation time, the medium size dependence of heavy quark energy loss is found to change from a linear to a quadratic form when the initial energy and momentum scale are increased relative to the quark mass. The radiative energy loss is also significantly suppressed relative to a light quark due to the suppression of collinear gluon emission by a heavy quark.

Authors:
; ;
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Director. Office of Science. Office of High Energy and Nuclear Physics. Division of Nuclear Physics; National Science Foundation of China 19928511 and 10135030 (US)
OSTI Identifier:
836797
Report Number(s):
LBNL-53791
R&D Project: NTCOST; TRN: US0500796
DOE Contract Number:  
AC03-76SF00098
Resource Type:
Journal Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 93; Journal Issue: 7; Other Information: Submitted to Physical Review Letters: Volume 93, No.7; Journal Publication Date: 08/13/2004; PBD: 16 Sep 2003
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; FRAGMENTATION; GLUONS; MULTIPLE SCATTERING; QUANTUM CHROMODYNAMICS; QUARKS; ENERGY LOSS NUCLEAR MEDIUM

Citation Formats

Zhang, Benr-Wei, Wang, Enke, and Wang, Xin-Nian. Heavy quark energy loss in nuclear medium. United States: N. p., 2003. Web.
Zhang, Benr-Wei, Wang, Enke, & Wang, Xin-Nian. Heavy quark energy loss in nuclear medium. United States.
Zhang, Benr-Wei, Wang, Enke, and Wang, Xin-Nian. Tue . "Heavy quark energy loss in nuclear medium". United States. https://www.osti.gov/servlets/purl/836797.
@article{osti_836797,
title = {Heavy quark energy loss in nuclear medium},
author = {Zhang, Benr-Wei and Wang, Enke and Wang, Xin-Nian},
abstractNote = {Multiple scattering, modified fragmentation functions and radiative energy loss of a heavy quark propagating in a nuclear medium are investigated in perturbative QCD. Because of the quark mass dependence of the gluon formation time, the medium size dependence of heavy quark energy loss is found to change from a linear to a quadratic form when the initial energy and momentum scale are increased relative to the quark mass. The radiative energy loss is also significantly suppressed relative to a light quark due to the suppression of collinear gluon emission by a heavy quark.},
doi = {},
journal = {Physical Review Letters},
number = 7,
volume = 93,
place = {United States},
year = {2003},
month = {9}
}