Bulk medium evolution has considerable effects on jet observables

We consider the case, in QCD, of a single jet propagating within strongly interacting fluid, finite extent. Interactions lead to appearance source energy-momentum fluid. The remnant that escapes container is analyzed along with portions medium excited by jet. study effect static versus semi-realistic expanding medium, jets traveling inward outward. response via recoils partonic scatterings based on weakly-coupled description and its combination hydrodynamical strongly-coupled description, followed incorporation into effects these limits reconstructed energy, momentum mass jet, as function angle away from original parton direction are studied. It demonstrated different flow velocity configurations produce considerable differences observables. This work highlights importance accurate dynamical modeling soft foundation which calculate modification, casts skepticism results obtained without such modeling.