Numerical study ofO(a)improved Wilson quark action on an anisotropic lattice

Quarkonium at Finite Temperature

“…The simulation is performed on lattices with the spatial lattice cutoff a −1 σ ≃ 2 GeV and the anisotropy a σ /a τ = 4 in the quenched approximation [12]. The lattice sizes are 20 3 × N t , where N t are from 160 (T ≃ 0) to 16 (T ≃ 1.75T c ).…”

Anisotropic lattices for precision computations in heavy flavor physics

“…Numerical simulation in the quenched approximation [2]: The mass dependent tuning of γ F is performed with meson dispersion relation. Quark mass dependence is small for m q a τ ≪ 1 and well fitted to a linear form in (m q a τ ) 2 .…”

“…As a candidate of framework which fulfills these conditions, we investigate the anisotropic lattice on which the temporal lattice spacing a τ is finer than the spatial one a σ [1,2,3]. The anisotropic lattice approach evidently satisfies above conditions (i) and (iii).…”

“…So far we have investigated the feasibility of the approach in the quenched approximation and * Poster presented by H. Matsufuru with the tree-level tadpole improvement for the O(a) improved Wilson quark action [1,2,3,4]. As will be summarized in Sec.…”

Study of spatial meson correlators at finite temperature in quenched anisotropic lattice QCD

“…We use the anisotropic lattice which has small lattice spacing in z-direction to measure the spatial hadron correlators in high resolution. Although one needs additional effort for the calibration of anisotropy parameters, once it has been done, the systematic uncertainties due to the anisotropy can be controlled within reasonable accuracy [4]. In the following, we show only the results for the pseudoscalar meson correlators, while the procedures are applicable for other channel in the same manner.…”