Interference effect in elastic parton energy loss in a finitemedium
Similar to the radiative parton energy loss due to gluonbremsstrahlung, elastic energy loss of a parton undergoing multiplescattering in a finite medium is demonstrated to be sensitive tointerference effect. The interference between amplitudes of elasticscattering via a gluon exchange and that of gluon radiation reduces theeffective elastic energy loss in a finite medium and gives rise to anon-trivial length dependence. The reduction is most significant for apropagation length L<4/\pi T in a medium with a temperature T. Thoughthe finite size effect is not significant for the average partonpropagation in the most central heavy-ion collisions, it will affect thecentrality dependence of its effect on jet quenching.
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Director. Office of Science. NuclearPhysics
- DOE Contract Number:
- DE-AC02-05CH11231
- OSTI ID:
- 920247
- Report Number(s):
- LBNL-60015; R&D Project: NTCOST; BnR: KB0301020; TRN: US0805670
- Journal Information:
- Physical Review B, Vol. 650, Issue 2-3; Related Information: Journal Publication Date:06/2007
- Country of Publication:
- United States
- Language:
- English
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