### Conveners

#### QCD at high temperature and/or density

- Rajiv V Gavai (Tata Institute, Mumbai, India)

Michael Strickland
(Kent State University)

5/20/14, 11:10 AM

QCD at High Temperature and/or Density

Contributed Talk

We present results of a three-loop hard-thermal-loop perturbation theory (HTLpt) calculation of the thermodynamic potential of a finite temperature and chemical potential system of quarks and gluons. We compare the resulting pressure, energy density, etc., and the diagonal/off-diagonal quark susceptibilities with lattice data. We show that there there is good agreement between the...

Francesca Bellini
(Universita e INFN (IT))

5/20/14, 11:30 AM

QCD at High Temperature and/or Density

Contributed Talk

Hadronic resonances constitute a valuable probe for the properties of the medium formed in heavy-ion collisions. In particular, they provide information on particle-formation mechanisms, the properties of the medium at freeze-out, and they contribute to the systematic study of energy loss and recombination. The study of resonance production in other collision systems such as pp and p-Pb form a...

Dr
Prasad Hegde
(Central China Normal University)

5/20/14, 11:50 AM

QCD at High Temperature and/or Density

Contributed Talk

Hydrodynamic models of heavy-ion collisions have increasingly begun to rely on lattice results for the Equation of State[1]. While the lattice has the advantage of being a first-principles approach to QCD, the notorious sign problem prevents a direct determination of the equation of state and other thermodynamic observables at finite baryon chemical potential $\mu_B$.
In our talk, we will...

Denes Sexty
(University of Heidelberg)

5/20/14, 12:10 PM

QCD at High Temperature and/or Density

Contributed Talk

The complex Langevin method is extended to full QCD at non-zero
chemical potential. The method evades the sign problem which
makes naive simulations at nonzero density impossible.
The procedure 'gauge cooling' is used to stabilize the simulations
at small enough lattice spacings.
The method allows simulations also at high densities, all the way up
to saturation. The method is...

Prof.
Harvey B. Meyer
(Joh. Gutenberg University Mainz)

5/20/14, 12:30 PM

QCD at High Temperature and/or Density

Contributed Talk

Static and non-static thermal screening states that couple to the
conserved vector current are investigated in the high-temperature
phase of QCD. Their masses and couplings to the current are determined
at weak coupling, as well as using two-flavor lattice QCD simulations.
A consistent picture emerges from the comparison, providing evidence
that non-static Matsubara modes can indeed be...

Alexei Bazavov
(University of Iowa)

5/20/14, 12:50 PM

QCD at High Temperature and/or Density

Contributed Talk

The quark-gluon plasma (QGP), the deconfined high-temperature phase of QCD, is currently under extensive investigation in heavy-ion collision experiments at RHIC and LHC. The transition from the hadronic, low-temperature phase to the QGP is a rapid crossover, manifested by a significant change in bulk thermodynamic quantities. A fundamental characteristic of QCD is the equation of state, which...