  Particle production sources in pPb collisions at LHC energies are
investigated in pseudorapidity space as functions of centrality. The
nonequilibrium-statistical relativistic diffusion model (RDM) with three
sources is applied to the analysis of preliminary charged-hadron distributions
measured by the ATLAS and ALICE collaborations in pPb collisions at 5.02 TeV.
The size of the midrapidity source relative to the fragmentation sources in pPb
collisions is considered as function of centrality, and incident energy. At LHC
energies particle production from the mid-rapidity gluon-gluon source is larger
than that from the fragmentation sources at all centralities. Conclusions
regarding the statistical equilibration process are drawn.

High Energy Physics - Phenomenology;Nuclear Theory