Heavy quark energy loss in nuclear medium

Journal Article · Tue Sep 16 00:00:00 EDT 2003 · Physical Review Letters

OSTI ID:836797

Zhang, Benr-Wei; Wang, Enke; Wang, Xin-Nian

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.

• Research Organization: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: 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)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 836797
• Report Number(s): LBNL-53791; R&D Project: NTCOST; TRN: US0500796
• Journal Information: Physical Review Letters, Vol. 93, 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

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
FRAGMENTATION
GLUONS
MULTIPLE SCATTERING
QUANTUM CHROMODYNAMICS
QUARKS
ENERGY LOSS NUCLEAR MEDIUM