  A strong suppression of non-photonic electrons in Au+Au collisions is
observed at RHIC. This is in disagreement with the expected dominance of the
energy loss via gluon radiation, which predicts a much weaker suppression of
heavy flavours due to the dead cone effect. However, collisional energy loss is
also important, as demonstrated recently by the Soft Colour Interaction Jet
Quenching model. Based on this model we show that collisional energy loss of
charm quarks gives a suppression of electrons of the observed magnitude, but
the contribution from beauty decays, which dominates at intermediate and large
pT, results in a somewhat weaker overall suppression of electrons than
observed.
