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VOLUME 108 | ISSUE 8 | PAGE 541
Radiative quark \boldsymbol{p_\perp}-broadening in a quark-gluon plasma beyond the soft gluon approximation
Abstract
We study the radiative correction to p_\perp-broadening of a fast quark in a quark-gluon plasma beyond the soft gluon approximation. We find that the radiative processes can suppress considerably p_\perp-broadening. This differs dramatically from previous calculations to logarithmic accuracy in the soft gluon approximation, predicting a considerable enhancement of p_\perp-broadening.