Imaginary chemical potential approach for the pseudocritical line in the QCD phase diagram with clover-improved Wilson fermions
Physical Review D 83 巻
114507-1-114507-9 頁
2011-06-13 発行
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| ファイル情報(添付) | |
| タイトル ( eng ) |
Imaginary chemical potential approach for the pseudocritical line in the QCD phase diagram with clover-improved Wilson fermions
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| 作成者 |
Nagata Keitaro
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| 収録物名 |
Physical Review D
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| 巻 | 83 |
| 開始ページ | 114507-1 |
| 終了ページ | 114507-9 |
| 抄録 |
The QCD phase diagram is studied in the lattice QCD simulation with the imaginary chemical potential approach. We employ a clover-improved Wilson fermion action of two flavors and a renormalization-group improved gauge action and perform the simulation at an intermediate quark mass on a 8^3×4 lattice. The QCD phase diagram in the imaginary chemical potential μ_I region is investigated by performing the simulation for more than 150 points on the (β,μ_I) plane. We find that the Roberge-Weiss phase transition at μ_I/T=π/3 is first order and its endpoint is second order, which are identified by the phase of the Polyakov loop. We determine the pseudocritical line from the susceptibility of the Polyakov loop modulus. We find a clear deviation from a linear dependence of the pseudocritical line on μ^2_1.
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| NDC分類 |
物理学 [ 420 ]
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| 言語 |
英語
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| 資源タイプ | 学術雑誌論文 |
| 出版者 |
American Physical Society
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| 発行日 | 2011-06-13 |
| 権利情報 |
Copyright (c) 2011 The American Physical Society
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| 出版タイプ | Version of Record（出版社版。早期公開を含む） |
| アクセス権 | オープンアクセス |
| 収録物識別子 |
[ISSN] 1550-7998
[DOI] 10.1103/PhysRevD.83.114507
[NCID] AA00773624
[DOI] http://dx.doi.org/10.1103/PhysRevD.83.114507
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