  It was argued recently that loop corrections to tree-level amplitudes are
essential in the discussion of the collisional energy loss of energetic partons
in the hot quark gluon plasma: Instead of $dE_{\rm coll}^B/dx \sim \alpha^2 T^2
\ln(ET/m_D^2)$, as first derived by Bjorken (assuming a constant $\alpha$), the
mean energy loss actually behaves as $dE_{\rm coll}/dx \sim \alpha(m_D^2)T^2$.
Here we calculate, within this resummation-improved framework, the probability
distribution functions (`quenching weights') of the collisional energy loss.
First results from a Monte Carlo implementation of this probabilistic
collisional quenching shed new light on the interpretation of jet suppression
in heavy ion collisions.
