Scalar Glueball Mass Reduction at Finite Temperature in SU(3) Anisotropic Lattice QCD

Preprint

17 September 2001

preprint
Published by arXiv in arXiv

Abstract

We report the first study of the glueball properties at finite temperatures below T_c using SU(3) anisotropic lattice QCD with beta = 6.25, the renormalized anisotropy gamma = a_s/a_t = 4 and 20^3 \times N_t (N_t = 35, 36, 37, 38, 40, 43, 45, 50, 72) at the quenched level. From the temporal correlation analysis with the smearing method, about 20 % mass reduction is observed for the lowest scalar glueball as m_G(T) = 1.25 \pm 0.1 GeV for 0.8 T_c < T < T_c in comparison with m_G \simeq 1.5 \sim 1.7 GeV at T \sim 0.

Keywords

ANISOTROPIC LATTICE
FINITE TEMPERATURES
SCALAR GLUEBALL
MASS REDUCTION
GLUEBALL MASS
LATTICE QCD
ANISOTROPY
M_G
QCD

All Related Versions

Version 1, 2001-09-17, ArXiv
Version 2, 2001-11-29, ArXiv
Version 3, 2002-07-19, ArXiv
Version 1, 2002-12-06, ArXiv (Unconfirmed version)
Published version: Physical Review D, 66 (1), 014507.

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