QGP viscosity at RHIC and the LHC - a 2012 status report
  In this article, we briefly review the recent progress related to extracting the quark-gluon plasma (QGP) specific shear viscosity from the flow data measured at Relativistic Heavy-Ion Collider (RHIC) and the Large Hadron Collider (LHC). 
Huichao Song (Peking U. and Ohio State U.)
nucl-th hep-ph nucl-ex