Scalar Glueball Mass Reduction at Finite Temperature in SU(3) Anisotropic Lattice QCD

Details Scalar Glueball Mass Reduction at Finite Temperature in SU(3) Anisotropic Lattice QCD Scalar Glueball Mass Reduction at Finite Temperature in SU(3) Anisotropic Lattice QCD

2001-09-17

arxiv.org/abs/hep-lat/0109011v3

Phys.Rev. D66 (2002) 014507

Physics

High Energy Physics

High Energy Physics - Lattice

This is the second revised version using more gauge configurations. 5 pages, Latex2e, 5 figures

Scientific paper

10.1103/PhysRevD.66.014507

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.

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