Radiative Processes in Quark-Gluon Plasma

The spectrum of emitted gluons from the process $\mathrm{g}\mathrm{g}\to \mathrm{g}\mathrm{g}\mathrm{g}$ has been evaluated by relaxing some of the approximations used in earlier works. The formula obtained in the present work has been applied to several physical quantities. A general expression for the dead cone of gluons radiated by virtual partons has been derived. It is observed that the suppression caused by the high virtuality is overwhelmingly large as compared to that on account of conventional dead-cone of heavy quarks.