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ID 23364
本文ファイル
著者
Saito, T.
Sakai, S.
NDC
物理学
抄録(英)
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.
掲載誌名
Physical Review D - Particles, Fields, Gravitation and Cosmology
69巻
1号
開始ページ
014506
出版年月日
2004
出版者
The American Physical Society
ISSN
1550-7998
NCID
出版者DOI
言語
英語
NII資源タイプ
学術雑誌論文
広大資料タイプ
学術雑誌論文
DCMIタイプ
text
フォーマット
application/pdf
著者版フラグ
publisher
権利情報
Copyright (c) 2004 The American Physical Society
関連情報URL
部局名
情報メディア教育研究センター