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Thermal Width Broadening of the 0++ Glueball Spectrum near Tc

Noriyoshi Ishii·Hideo Suganuma·Hideo Matsufuru
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Abstract

We study the 0++ glueball correlator constructed with SU(3) anisotropic quenched lattice QCD 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, analysing the lattice data obtained with 5,500-9,900 gauge configurations at each T. The results indicate the significant thermal width broadening as Gamma(Tc) \sim 300 MeV with a reduction in the peak center as Delta omega_0(Tc) \sim 100 MeV in the vicinity of the critical temperature Tc.

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Noriyoshi Ishii, Hideo Suganuma, Hideo Matsufuru. 2003-04-16. Thermal Width Broadening of the 0++ Glueball Spectrum near Tc. https://doi.org/10.1143/ptps.151.166

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