SM&FT 2015 - The XVI Workshop on Statistical Mechanics and nonpertubative Field Theory

Session

Session 4

10 Dec 2015, 11:30

Dipartimento di Fisica, Univ. Bari - INFN Sezione di Bari

Conveners

Session 4

• Leonardo Cosmai (BA)

38. Progress toward QCD at non-zero matter density

Mr Philippe de Forcrand (ETH Zurich & CERN)

10/12/2015, 11:30

Determining the phase diagram of QCD, as a function of the density of matter and the temperature, could be accomplished by lattice Monte Carlo simulations, if it were not for a severe "sign problem". I present one promising approach to circumvent this obstacle, based on reversing the usual order of integration and integrating the gauge fields first.

31. Curvature of the pseudocritical line in (2+1)-flavor QCD

Alessandro Papa (CS)

10/12/2015, 12:10

We study QCD with (2 + 1) HISQ fermions at nonzero temperature and nonzero imaginary baryon chemical potential. Monte Carlo simulations are performed using the MILC code along the line of constant physics with a light to strange mass ratio of ml/ms=1/20 on lattices up to 48^3x12 to check for finite cutoff effects. We determine the curvature of the pseudocritical line extrapolated to the...

18. The pseudocritical line in QCD at nonvanishing chemical potential

Michele Mesiti (PI)

10/12/2015, 12:40

We present a determination of the curvature of the pseudo-critical line in Nf=2+1 QCD at the physical point, performed using the analytic continuation approach. We extrapolate the results towards the continuum limit by considering four different lattice spacings and studying the possible systematics involved.