2024-02-22T13:38:22Z
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oai:niigata-u.repo.nii.ac.jp:00031001
2022-12-15T04:01:32Z
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Equation of state at finite density in two-flavor QCD with improved Wilson quarks
Equation of state at finite density in two-flavor QCD with improved Wilson quarks
Aoki, S.
169246
Ejiri, S.
169247
Hatsuda, T.
169248
Ishii, N.
169249
Kanaya, K.
169250
Maezawa, Y.
169251
Ukita, N.
169252
Umeda, T.
169253
WHOT-QCD, Collaboration
169254
We study the equation of state in two-flavor QCD at finite temperature and density. Simulations are made with the RG-improved gluon action and the clover-improved Wilson quark action. Along the lines of constant physics for mPS/mV = 0.65 and 0.80, we compute the derivatives of the quark determinant with respect to the quark chemical potential μq up to the fourth order at μq = 0. We adopt several improvement techniques in the evaluation. We study thermodynamic quantities and quark number susceptibilities at finite μq using these derivatives. We find enhancement of the quark number susceptibility at finite μq, in accordance with previous observations using staggered-type quarks. This suggests the existence of a nearby critical point.
The XXVI Internaitonal Symposium on Lattice Field Theory July 14-19 2008 Williamsburg, Virginia, USA
conference paper
SISSA
2008-07
application/pdf
PoS - Proceedings of Science
189
Lattice2008
1
7
PoS - Proceedings of Science
18248039
https://niigata-u.repo.nii.ac.jp/record/31001/files/LATTICE 2008_189.pdf
eng
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