Nuclear Physics Colloquium Nuclear Physics Colloquium Location: Physics
Building Science Campus Riedberg, Max-von-Laue-Str. 1, room
PHYS 2.116
Time: Thursday, November 14, 2013, 4:30-5:30pm (plus 10min for
discussion)
Contact: hees@fias.uni-frankfurt.de
The
success of viscous Relativistic Fluid Dynamics (RFD) in
describing hadron spectra and elliptic flow
at RHIC and LHC have led to a strong interest in the transport
coefficients of QCD, in particular the
shear- and
bulk-viscosity as well as the shear-viscosity over
entropy-density ratio $\eta/s$. In my
talk I will
review our current state of knowledge on the shear viscosity of
QCD matter.
In
particular I will focus on the latest attempts to
constrain $\eta/s$ via model to data comparisons,
the question
whether low viscosity matter needs to be strongly interacting in
the deconfined phase
and on
recent calculations of $\eta/s$ for a hadron gas in and out of
chemical equilibrium.