Inhomogeneous nucleation of quark-gluon plasma in high energy nuclear collisions

Inhomogeneous nucleation of quark-gluon plasma in high energy nuclear collisions.

We estimate the probability that a hard nucleon-nucleon collision is able to nucleate a seed of quark{gluon plasma in the surrounding hot and dense hadronic matter formed during a central collision of two large nuclei at AGS energies. The probability of producing at least one such seed is on the order of 1-100%. We investigate the in uence of quark{gluon plasma formation on the observed multipl...

Signatures of Quark-Gluon Plasma Phase Transition in High-Energy Nuclear Collisions

In high-energy nuclear collisions, the new phase of the quark-gluon plasma is indicated by an anomalous increase in pressure, an excess of direct photon production, an excess of strangeness production, and an anomalous J/ψ suppression. We review these signatures and discuss how recent high-energy heavy-ion experiments at CERN are consistent with the production of the quark-gluon plasma in high-...

The Jet Quenching in High Energy Nuclear Collisions and Quark-gluon Plasma

We investigate the energy loss of quark and gluon jets in quark-gluon plasma produced in central Au+Au collisions at RHIC energy. We use the physical characteristic of initial and mixed phases, which were found in effective quasiparticle model for SPS and RHIC energy [5]. At investigation of energy loss we take into account also the production of hot glue at first stage. The energy loss in expa...

Radiative energy loss of high energy quarks in finite-size nuclear matter and quark-gluon plasma

The induced gluon radiation of a high energy quark in a finite-size QCD medium is studied. For a sufficiently energetic quark produced inside a medium we find the radiative energy loss ∆Eq ∝ L, where L is the distance passed by quark in the medium. It has a weak dependence on the initial quark energy Eq. The L 2 dependence turns to L as the quark energy decreases. Numerical calculations are per...

Signatures of Quark-Gluon-Plasma formation in high energy heavy-ion collisions: A critical review