The role of finite kinematic bounds in the induced gluon emission from fast quarks in a finite size quark-gluon plasma
B. G. Zakharov
L. D. Landau Institute for Theoretical Physics RAS, 117334 Moscow, Russia
We study the influence of finite kinematic boundaries on the induced
gluon radiation from a fast quark in a finite size quark-gluon plasma.
The calculations are carried out for fixed and running coupling constant.
We find that for running coupling constant the kinematic correction to the
radiative energy loss is small for quark energy GeV.
Our results differ both analytically and numerically from
that obtained by the GLV group [2z-GLV1].
The effect of the kinematic cut-offs is considerably smaller than
reported in [2z-GLV1].