Rotating quark-gluon plasma in relativistic heavy ion collisions
  We study the rotational collective motion of the quark-gluon plasma in relativistic heavy ion collisions using the widely-adopted AMPT (A Multi-Phase Transport) model. The global angular momentum, the average vorticity carried by the quark-gluon plasma, and the locally defined vorticity fields are computed for Au+Au collisions, with detailed information of their time evolution, spatial distribution, as well as the dependence on beam energy and collision centrality. 
Yin Jiang, Zi-Wei Lin, Jinfeng Liao
hep-ph nucl-th