Recent results on heavy quark quenching in ultrarelativistic heavy ion   collisions: the impact of coherent gluon radiation
  We present a model for radiative energy loss of heavy quarks in quark gluon plasma which incorporates coherence effects. We then study its consequences on the radiation spectra as well as on the nuclear modification factor of open heavy mesons produced in ultrarelativistic heavy ion collisions. 
Pol Bernard Gossiaux
hep-ph