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Study of Charmonia near the deconfining transition on an anisotropic lattice with O(a) improved quark action

T. Umeda·R. Katayama·O. Miyamura·H. Matsufuru
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Abstract

We study hadron properties near the deconfining transition in the quenched lattice QCD simulation. This paper focuses on the heavy quarkonium states, such as $J/ψ$ meson. In order to treat heavy quarks at $T>0$, we adopt the $O(a)$ improved Wilson action on anisotropic lattice. We discuss $c\bar{c}$ bound state observing the wave function and compare the meson correlators at above and below $T_c$. Although we find a large change of correlator near the $T_c$, the strong spatial correlation which is almost the same as confinement phase survives even $T\sim 1.5T_c$.

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T. Umeda, R. Katayama, O. Miyamura, H. Matsufuru. 2000-11-28. Study of Charmonia near the deconfining transition on an anisotropic lattice with O(a) improved quark action. https://doi.org/10.1142/s0217751x0100355x

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