  Interactions of high momentum partons with Quark-Gluon Plasma created in
relativistic heavy-ion collisions provide an excellent tomography tool for this
new form of matter. Recent measurements for charged hadrons and unidentified
jets at the LHC show an unexpected flattening of the suppression curves at high
momentum, exhibited when either momentum or the collision centrality is
changed. Furthermore, a limited data available for B probes indicate a
qualitatively different pattern, as nearly the same flattening is exhibited for
the curves corresponding to two opposite momentum ranges. We here show that the
experimentally measured suppression curves are well reproduced by our
theoretical predictions, and that the complex suppression patterns are due to
an interplay of collisional, radiative energy loss and the dead-cone effect.
Furthermore, for B mesons, we predict that the uniform flattening of the
suppression indicated by the limited dataset is in fact valid across the entire
span of the momentum ranges, which will be tested by the upcoming experiments.
Overall, the study presented here, provides a rare opportunity for pQCD theory
to qualitatively distinguish between the major energy loss mechanisms at the
same (nonintuitive) dataset.
