  The full space-time evolution of gluons, light and heavy quarks in
ultra-relativistic heavy-ion collisions is studied within the partonic
transport model Boltzmann Approach to MultiParton Scatterings (BAMPS). We
discuss for light and heavy quarks the elastic and radiative energy loss with a
running coupling. Radiative processes, in particular, are implemented through
an improved version of the Gunion-Bertsch matrix element, which is derived from
comparisons to the exact result, explicitly taking finite heavy quark masses
into account. Subsequently, we present results with and without radiative
processes and compare them to experimental data at LHC. A focus is put on the
nuclear modification factor of charged hadrons and D mesons.
