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ID 48691
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著者
Umeda, Takashi 大学院教育学研究科 広大研究者総覧
Ejiri, Shinji
Kanaya, Kazuyuki
Maezawa, Yu
Nakagawa, Yujin
Ohno, Hiroshi
Saito, Hiroyuki
Yoshida, S
抄録(英)
We study scaling behavior of a chiral order parameter in the low density region, performing a simulation of two-flavor QCD with improved Wilson quarks. The scaling behavior of the chiral order parameter defined by a Ward-Takahashi identity agrees with the scaling function of the three-dimensional O(4) spin model at zero chemical potential. We extend the scaling study to finite density QCD. Applying the reweighting method and calculating derivatives of the chiral order parameter with respect to the chemical potential, the scaling properties of the chiral phase transition are discussed in the low density region. We moreover calculate the curvature of the phase boundary of the chiral phase transition in the temperature and chemical potential plane assuming the O(4) scaling relation.
内容記述
This work is in part supported by Grants-in-Aid of the Japanese Ministry of Education, Culture, Sports, Science and Technology (Nos. 21340049, 22740168, and 23540295) and by the Large Scale Simulation Program No.12/13-14 (FY2012-2013) of High Energy Accelerator Research Organization (KEK). SY is supported by JSPS Strategic Young Researcher Overseas Visits Program for Accelerating Brain Circulation (No. R2411). HS is also supported by JSPS for Young Scientists.
The 31st International Symposium on Lattice Field Theory (LATTICE 2013) ; Place : Mainz, Germany ; Date : 29 July - 3 August, 2013
掲載誌名
Proceedings of Science
187巻
開始ページ
450
出版年月日
2014-08-28
ISSN
1824-8039
出版者DOI
言語
英語
NII資源タイプ
会議発表論文
広大資料タイプ
会議発表論文
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Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-ShareAlike.
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部局名
教育学研究科