The Thermal Glueball at Finite Temperature in SU(3) Anisotropic Lattice   QCD
  The thermal glueball is studied at finite temperature by using SU(3) anisotropic lattice QCD with beta_{lat}=6.25, the renormalized anisotropy xi = a_s/a_t = 4 over the lattice of the size 20^3xN_t with various N_t at the quenched level. While the narrow peak ansatz leads to the significant polemass reduction of about 300 MeV near the critical temperature T_c, Breit-Wigner ansatz which can take into account the possible appearance of the thermal width leads to the significant thermal width broadening of about 300 MeV with a modest reduction of the peak center of about 100 MeV. 
Noriyoshi Ishii (Wako, RIKEN), Hideo Suganuma (Tokyo Inst. Tech.),   Hideo Matsufuru (Kyoto U., Yukawa Inst., Kyoto)