Lattice calculation of gluon screening masses
Physical Review D - Particles, Fields, Gravitation and Cosmology 69 巻 1 号
014506- 頁
2004 発行
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| ファイル情報(添付) | |
| タイトル ( eng ) |
Lattice calculation of gluon screening masses
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| 作成者 |
Saito T.
Sakai S.
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| 収録物名 |
Physical Review D - Particles, Fields, Gravitation and Cosmology
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| 巻 | 69 |
| 号 | 1 |
| 開始ページ | 014506 |
| 抄録 |
We study SU(3) gluon electric and magnetic masses at finite temperatures using quenched lattice QCD on a 202×32×6 lattice. We focus on temperature regions between T = Tc and 6Tc, which are realized in BNL Relativistic Heavy Ion Coll icier and CERN Large Hadron Collider experiments. Stochastic quantization with a gauge-fixing term is employed to calculate gluon propagators. The temperature dependence of the electric mass is found to be consistent with the hard-thermal-loop perturbation, and the magnetic mass has finite values in the temperature region of interest. Both screening masses have little gauge parameter dependence. The behavior of the gluon propagators is very different in confinement or deconfincment physics. The short distance magnetic part behaves like a confined propagator even in the deconfincment phase. A simulation with a larger lattice, 322× 48×6, shows that the magnetic mass has a stronger finite size effect than the electric mass.
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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 |
The American Physical Society
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| 発行日 | 2004 |
| 権利情報 |
Copyright (c) 2004 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.69.014506
[NCID] AA00773624
[DOI] http://dx.doi.org/10.1103/PhysRevD.69.014506
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