Physics – High Energy Physics – High Energy Physics - Lattice
Scientific paper
2009-10-28
PoS LAT2009:190,2009
Physics
High Energy Physics
High Energy Physics - Lattice
8 pages, poster presented at The XXVII International Symposium on Lattice Field Theory (Lattice 2009), July 26-31 2009, Peking
Scientific paper
We report on the status of our study towards the equation of state in 2+1 flavor QCD with improved Wilson quarks. To reduce the computational cost which is quite demanding for Wilson-type quarks, we adopt the fixed scale approach, i.e. the temperature T is varied by N_t at fixed lattice spacing. Since the conventional integral method to obtain the pressure is inapplicable at a fixed scale, we adopt the "T-integral method", to calculate the pressure non-perturbatively. Reduction of the computational cost of T=0 simulations thus achieved is indispensable to study EOS in QCD with dynamical quarks.
Aoki Sadao
Ejiri Shinji
Hatsuda Tetsuo
Ishii Naohiro
Kanaya Kazuyuki
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