Interference effect in elastic parton energy loss in a finite medium
Abstract
Similar to the radiative parton energy loss due to gluon bremsstrahlung, elastic energy loss of a parton undergoing multiple scattering in a finite medium is demonstrated to be sensitive to interference effect. The interference between amplitudes of elastic scattering via a gluon exchange and that of gluon radiation reduces the effective elastic energy loss in a finite medium and gives rise to a non-trivial length dependence. The reduction is most significant for a propagation length in a medium with a temperature . Though the finite size effect is not significant for the average parton propagation in the most central heavy-ion collisions, it will affect the centrality dependence of its effect on jet quenching.
Keywords
Cite
@article{arxiv.nucl-th/0604040,
title = {Interference effect in elastic parton energy loss in a finite medium},
author = {Xin-Nian Wang},
journal= {arXiv preprint arXiv:nucl-th/0604040},
year = {2009}
}
Comments
6 pages with two postscript figures. New version with few typos corrected and brief discussions added