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arXiv · hep-lat/0309001

Charmonia above the Deconfinement Phase Transition

M. Asakawa·T. Hatsuda
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Abstract

Analyzing correlation functions of charmonia at finite temperature ($T$) on $32^3\times(32-96)$ anisotropic lattices by the maximum entropy method (MEM), we find that $J/ψ$ and $η_c$ survive as distinct resonances in the plasma even up to $T \simeq 1.6 T_c$ and that they eventually dissociate between $1.6 T_c$ and $1.9 T_c$ ($T_c$ is the critical temperature of deconfinement). This suggests that the deconfined plasma is non-perturbative enough to hold heavy-quark bound states. The importance of having sufficient number of temporal data points in the MEM analysis is also emphasized.

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M. Asakawa, T. Hatsuda. 2003-08-30. Charmonia above the Deconfinement Phase Transition. https://doi.org/10.1016/s0920-5632(03)02649-5

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