The Thermal Width of the Glueball at Non-Zero Temperature
High Energy Physics - Lattice
2009-11-07 v1
Abstract
We use SU(3) anisotropic lattice QCD at quenched level to study the 0++ glueball correlator at various temperature taking into account the possible existence of the thermal width in the ground-state peak. For this purpose, we adopt the Breit-Wigner ansatz for the appropriate fit-function for the lattice data obtained with 5,500-9,900 gauge configurations at each T. The results show the significant thermal width broadening as Gamma(T_c) \sim 300 MeV with a reduction in the peak center as Delta omega_0(T_c) \sim 100 MeV near the critical temperature T_c.
Cite
@article{arxiv.hep-lat/0208043,
title = {The Thermal Width of the Glueball at Non-Zero Temperature},
author = {Noriyoshi Ishii and Hideo Suganuma and Hideo Matsufuru},
journal= {arXiv preprint arXiv:hep-lat/0208043},
year = {2009}
}
Comments
Talk given at LATTICE 2002, The XX International Symposium on Lattice Field Thoery, Massachusetts, USA, June 24-29, 2002, Lattice2001(nonzerot), 1 figure, 3 pages