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Title :Scaling behavior of chiral phase transition in two-flavor QCD with improved Wilson quarks at finite density
Authors :Ejiri, Shinji
Nakagawa, Y.
Aoki, S.
Kanaya, K.
Ohno, H.
Saito, H.
Hatsuda, T.
Maezawa, Y.
Umeda, T.
WHOT-QCD Collaboration
Publisher :SISSA
Issue Date :Jul-2010
Journal Title :PoS - Proceedings of Science
Volume :Lattice2010
Issue :181
Start Page :1
End Page :7
ISSN :1824-8039
Description :The XXVIII Internaitonal Symposium on Lattice Field Theory, Lattice2010 July 14-19, 2010 Villasimius, Sardinia Italy
Abstract :We study scaling behavior of a chiral order parameter performing a simulation of two-flavor QCD with improved Wilson quarks. It has been shown that the scaling behavior of the chiral order parameter defined by a Ward-Takahashi identity agrees with the scaling function of the threedimensional O(4) spin model at zero chemical potential. We extend the scaling study to finite density QCD. Calculating derivatives of the chiral order parameter with respect to the chemical potential in two-flavor QCD, the scaling property of chiral phase transition is discussed in the low density region. We moreover calculate the curvature of the phase boundary of the chirl phase transition in the temperature and chemical potential plane assuming the O(4) scaling relation.
Type Local :会議発表論文
Language :eng
Format :application/pdf
URI :http://hdl.handle.net/10191/27688
fullTextURL :http://dspace.lib.niigata-u.ac.jp/dspace/bitstream/10191/27688/1/Lattice 2010_181.pdf
Rights :© Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.
Appears in Collections:99 その他学会発表資料

Please use this identifier to cite or link to this item: http://hdl.handle.net/10191/27688