Scalar glueball mass reduction at finite temperature in SU(3) anisotropic lattice QCD
Sep, 2001
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Abstract:
We report the first study of the glueball properties at finite temperatures below T_c using SU(3) anisotropic lattice QCD with beta=6.25, the renormalized anisotropy xi \equiv a_s/a_t = 4 and 20^3 \times N_t (N_t=35,36,37,38,40,43,45,50,72) at the quenched level. From the temporal correlation analysis with the smearing method, about 20 % mass reduction is observed for the lowest scalar glueball as m_G(T)=1250 \pm 50MeV for 0.8 T_c < T < T_c in comparison with m_G \simeq 1500 \sim 1700MeV at T \simeq 0.- gauge field theory: SU(3)
- lattice field theory: anisotropy
- finite temperature
- glueball: scalar
- glueball: mass
- numerical calculations: Monte Carlo
- 12.38.Gc
- 12.39.Mk
- 11.15.Ha
- 12.38.Mh
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