Open charm, photon, and dilepton production in an increasingly strongly interacting parton plasma

Abstract

We examine the effects that the new equilibration scenario of the increasingly strongly interacting parton plasma and the nonequilibrium environment have on the production of open charms, photons, and dileptons at Large Hadron Collider (LHC) and at Relativistic Heavy Ion Collider (RHIC) energies. We show that an out-of-equilibrium effect, not shown before, changes significantly the relative yield of the two main partonic contributions to photon production in the higher ${p}_{T}$ range, and higher orders for electromagnetic emissions have increased significance in the new scenario especially at RHIC energies. We argue that the effects of the new scenario are not restricted just to the parton phase but will continue through to the later hadron gas phase with potentially positive implications for the detection of the quark-gluon plasma.