Thermal Width Broadening of the 0++Glueball Spectrum nearTc | Zendy

Noriyoshi Ishii | Zendy; Hideo Suganuma | Zendy; Hideo Matsufuru | Zendy

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Thermal Width Broadening of the 0⁺⁺Glueball Spectrum nearT_c

Author(s) -

Noriyoshi Ishii,

Hideo Suganuma,

Hideo Matsufuru

Publication year - 2003

Publication title -

progress of theoretical physics supplement

Language(s) - English

Resource type - Journals

ISSN - 0375-9687

DOI - 10.1143/ptps.151.166

Subject(s) - glueball , physics , ansatz , anisotropy , thermal , lattice (music) , ground state , line width , quantum chromodynamics , condensed matter physics , nuclear physics , atomic physics , particle physics , quantum mechanics , thermodynamics , acoustics , optics

We study the 0++ glueball correlator constructed with SU(3) anisotropicquenched lattice QCD at various temperature taking into account the possibleexistence of the thermal width in the ground-state peak. For this purpose, weadopt the Breit-Wigner ansatz, analysing the lattice data obtained with5,500-9,900 gauge configurations at each T. The results indicate thesignificant thermal width broadening as Gamma(Tc) \sim 300 MeV with a reductionin the peak center as Delta omega_0(Tc) \sim 100 MeV in the vicinity of thecritical temperature Tc.Comment: Talk given at Tokyo-Adelaide Joint Workshop on Quarks, Astrophysics and Space Physics, Tokyo, Japan, 6-10 January 2003, 5 pages, Latex2e, 2 figure

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