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arXiv · hep-lat/0208043

The Thermal Width of the Glueball at Non-Zero Temperature

Noriyoshi Ishii·Hideo Suganuma·Hideo Matsufuru
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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.

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Noriyoshi Ishii, Hideo Suganuma, Hideo Matsufuru. 2002-08-23. The Thermal Width of the Glueball at Non-Zero Temperature. https://doi.org/10.1016/s0920-5632(03)01590-1

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