2024-03-03T06:48:09Z
https://niigata-u.repo.nii.ac.jp/oai
oai:niigata-u.repo.nii.ac.jp:00031001
2022-12-15T04:01:32Z
176:1825:1826
453:457
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.
Ejiri, S.
Hatsuda, T.
Ishii, N.
Kanaya, K.
Maezawa, Y.
Ukita, N.
Umeda, T.
WHOT-QCD, Collaboration
© Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.
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
SISSA
2008-07
eng
conference paper
http://hdl.handle.net/10191/27687
https://niigata-u.repo.nii.ac.jp/records/31001
18248039
PoS - Proceedings of Science
PoS - Proceedings of Science
Lattice2008
189
1
7
https://niigata-u.repo.nii.ac.jp/record/31001/files/LATTICE 2008_189.pdf
application/pdf
199.0 kB
2019-08-26