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Study of the critical point in lattice QCD at high temperature and density
Study of the critical point in lattice QCD at high temperature and density
Ejiri, Shinji
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We propose a method to probe the nature of phase transitions in lattice QCD at finite temperature and density, which is based on the investigation of an effective potential as a function of the average plaquette. We analyze data obtained in a simulation of two-flavor QCD using p4-improved staggered quarks with bare quark mass m/T = 0.4, and find that a first order phase transition line appears in the high density regime for μq/T >_~2.5. The effective potential as a function of the quark number density is also studied. We calculate the chemical potential as a function of the density from the canonical partition function and discuss the existence of the first order phase transition line.
The XXV Internaitonal Symposium on Lattice Field Theory July 30 - August 4 2007 Regensburug, Germany
SISSA
2007-08
eng
conference paper
http://hdl.handle.net/10191/27699
https://niigata-u.repo.nii.ac.jp/records/31005
18248039
PoS - Proceedings of Science
PoS - Proceedings of Science
Lattice2007
181
1
7
https://niigata-u.repo.nii.ac.jp/record/31005/files/LATTICE 2007_181.pdf
application/pdf
260.3 kB
2019-08-26