ar X iv : h ep - l at / 0 30 40 10 v 1 1 6 A pr 2 00 3 1 Thermal Width Broadening of the 0 + + Glueball Spectrum near T
نویسندگان
چکیده
We study the 0 glueball correlator constructed with SU(3) anisotropic quenched lattice QCD at various temperature taking into account the possible existence of the thermal width in the ground-state peak. For this purpose, we adopt the Breit-Wigner ansatz, analysing the lattice data obtained with 5,500–9,900 gauge configurations at each T . The results indicate the significant thermal width broadening as Γ (Tc) ∼ 300 MeV with a reduction in the peak center as ∆ω0(Tc) ∼ 100 MeV in the vicinity of the critical temperature Tc.
منابع مشابه
ar X iv : h ep - p h / 96 04 39 5 v 1 2 4 A pr 1 99 6 Estimate for the 0 + + glueball mass in QCD
We obtain accurate result for the lightest glueball mass of QCD in 3 dimensions from lattice Hamiltonian field theory. Using the dimensional reduction argument, a good approximation for confining theories, we suggest that the 0 ++ glueball mass in 3+1 dimensional QCD be about 1.71 GeV.
متن کاملar X iv : h ep - l at / 0 61 20 21 v 2 1 1 A pr 2 00 7 Precision study of the SU ( 3 ) topological susceptibility in the continuum
We determine the topological susceptibility in the SU(3) pure gauge theory. We perform a series of high-statistics lattice studies and take the combined continuum and infinite volume limit. We find χtopr 4 0 = 0.0524(7)(6), which translates into χ 1/4 top = 193(1)(8)MeV with the second error exclusively due to the intrinsic scale ambiguity.
متن کاملar X iv : h ep - t h / 03 02 00 7 v 3 2 8 A pr 2 00 3 April 2003 Stability Issues for w < − 1 Dark Energy
Precision cosmological data hint that a dark energy with equation of state w = P/ρ < −1 and hence dubious stability is viable. Here we discuss for any w nucleation from Λ > 0 to Λ = 0 in a first-order phase transition. The critical radius is argued to be at least of galactic size and the corresponding nucleation rate glacial, thus underwriting the dark energy’s stability and rendering remote an...
متن کاملar X iv : h ep - p h / 05 04 04 2 v 1 6 A pr 2 00 5 Strong interactions at all density
We show using Mean Field Theory that the phase diagram of QCD at finite density (T = 0) is such that chiral symmetry remains spontaeously broken at all density! Talk given at the Recontres Vietnam, Hanoi, August 2004
متن کامل