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Experimental data measured in sqrt(s)=2.76 TeV Pb+Pb collisions at the LHCshow a significant enhancement of events with an unbalanced pair ofreconstructed jet momenta in comparison with p+p collisions. This enhancementof momentum imbalance is supposed to be caused by the different momentum lossof the initial back-to-back di-partons by scatterings within the created densemedium. For investigating the underlying partonic momentum loss we employ theon-shell transport model BAMPS (Boltzmann Approach for Multi-Parton Scattering)for full heavy-ion collisions, which numerically solves the 3+1D Boltzmannequation based on 2->2 as well as inelastic 2<->3 scattering processes,together with PYTHIA initial state conditions for the parton showers. Due tothe employed test-particle approach jet reconstruction within BAMPS events isnot trivial. We introduce a method that nevertheless allows the microscopicsimulation of the full evolution of the shower particles, recoiled mediumparticles, and the underlying bulk medium in one common microscopic framework.With this method it is possible to investigate the role of the medium recoilfor the momentum imbalance A_J while using well-established backgroundsubtraction algorithms. Due to the available particle information inconfiguration as well as momentum space within BAMPS, it is additionallypossible to reproduce the entire evolution of the reconstructed jets within themedium. With this information we investigate the sensitivity of the jetmomentum loss from the difference in the partonic in-medium path lengths.

Influence of multiple in-medium scattering processes on the momentum imbalance of reconstructed di-jets