Heavy Quark Energy Loss in Nuclear Medium

Details Heavy Quark Energy Loss in Nuclear Medium Heavy Quark Energy Loss in Nuclear Medium

2003-09-16

arxiv.org/abs/nucl-th/0309040v2

Phys.Rev.Lett.93:072301,2004

Physics

Nuclear Physics

Nuclear Theory

4 pages in Revtex, 3 figures

Scientific paper

10.1103/PhysRevLett.93.072301

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.

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