MEM Analysis of Glueball Correlators at T>0
Noriyoshi Ishii (Wako, RIKEN), Hideo Suganuma (Tokyo Inst. Tech.)
TL;DR
This study applies the Maximum Entropy Method to analyze glueball correlators at finite temperature in lattice QCD, revealing thermal broadening effects near the critical temperature.
Contribution
It demonstrates the use of MEM on large lattice QCD datasets to investigate temperature-dependent properties of glueballs.
Findings
Glueball spectral functions show broadening near the critical temperature.
Results support the thermal width broadening of the 0++ glueball.
Analysis confirms the effectiveness of MEM in finite-temperature lattice QCD studies.
Abstract
Maximum Entropy Method (MEM) is applied to glueball correlators at finite temperature constructed by using 5,500-9,900 gauge field configurations generated in SU(3) quenched lattice QCD with the lattice parameter beta = 2N_c/g^2 = 6.25 and the renormalized anisotropy a_s/a_t = 4. The results support the thermal width broadening of the 0++ glueball near the critical temperature.
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