Towards the QCD equation of state at the physical point using Wilson fermion
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We study the (2+1)-flavor QCD at nonzero temperatures using nonperturbatively improved Wilson quarks of the physical masses by the fixed scale approach. We perform physical point simulations at finite temperatures with the coupling parameters which were adopted by the PACS-CS Collaboration in their studies using the reweighting technique. Zero temperature values are obtained on the PACS-CS configurations which are open to the public on the ILDG/JLDG. Finite temperature configurations are generated with the RHMC algorithm. The lattice sizes are 323×Nt with Nt=14, 13, ⋯, 4 which correspond to T≈160--550 MeV. We present results of some basic observables at these temperatures and the status of our calculation of the equation of state.
This work is in part supported by JSPSKAKENHI Grant No. 26287040, No. 26400244, No. 26400251, and No. 15K05041. This work isin part supported also by the Large Scale Simulation Program of High Energy AcceleratorResearch Organization (KEK) No. 13/14-21 and No. 14/15-23.
The 33rd International Symposium on Lattice Field Theory (LATTICE 2015) ; Place : Kobe International Conference Center, Kobe, Japan ; Date : July 14 -18, 2015
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Graduate School of Education
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