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arXiv · hep-lat/0309012

Charmonium at finite temperature

P. Petreczky·S. Datta·F. Karsch·I. Wetzorke
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Abstract

We study charmoinum correlators and spectral functions at finite temperature within the quenched approximation using isotropic lattices with lattice spacing a^-1=4.86 GeV and 9.72 GeV. Although we observe some medium modifications of the ground state charmonium spectral function above deconfinement, we find that ground state charmonia (J/psi and eta_c) exist in the deconfined phase at least up to temperatures as high as 1.5Tc. P-wave charmonia (chi_c) on the other hand are dissociated already at 1.12Tc.

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P. Petreczky, S. Datta, F. Karsch, I. Wetzorke. 2003-09-03. Charmonium at finite temperature. https://doi.org/10.1016/s0920-5632(03)02653-7

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