Experimental studies of the quantum chromodynamics phase diagram at the STAR experiment

摘要

We review the STAR experiment's results to date from the Beam Energy Scan (BES) at Brookhaven's Relativistic Heavy Ion Collider, and outline future plans and prospects in this area. BES Phase-I is based on Au+Au data taken in 2010 and 2011 at $sqrt{s_{NN}} = 7.7$, 11.5, 19.6, 27 and 39 GeV, and when interpreted in conjunction with the large datasets available at 62.4 and 200 GeV, permits an initial exploration of the phase diagram of quantum chromodynamics (QCD) matter. The three goals of BES Phase-I are as follows:a search for turn-off of the promising signatures of quark gluon plasma (QGP) already reported at the top RHIC energies;