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ID 23364
file
creator
Saito, T.
Sakai, S.
NDC
Physics
abstract
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.
journal title
Physical Review D - Particles, Fields, Gravitation and Cosmology
volume
Volume 69
issue
Issue 1
start page
014506
date of issued
2004
publisher
The American Physical Society
issn
1550-7998
ncid
publisher doi
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
publisher
rights
Copyright (c) 2004 The American Physical Society
relation url
department
Information Media Center