منابع مشابه
Charmonium at finite temperature
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/ψ and ηc) exist in the deconfined phase at least up to t...
متن کاملCharmonium correlators and spectral functions at finite temperature
We present an operational approach to address the in-medium behavior of charmonium and analyze the reliability of maximum entropy method (MEM). We study the dependences of the ratio of correlators to the reconstructed one and the free one on the resonance’s width and the continuum’s threshold. Furthermore, we discuss the issue of the default model dependence of the spectral function obtained fr...
متن کاملStudy of constant mode in charmonium correlators at finite temperature
Recent studies on the spectral function of charmonium in lattice QCD suggest survival of J/ψ state in the deconfinement phase till relatively high temperature. Based on the studies, different scenarios of J/ψ suppression are discussed to understand experimental results in the Heavy Ion Collision experiments. The scenarios require the information on the dissociation temperatures of χc and ψ ′ as...
متن کاملCharmonium properties at finite temperature on quenched anisotropic lattices
We study charmonium properties below and above Tc up to 1.8Tc, on quenched anisotropic lattices. Information of the spectral functions is extracted using the maximum entropy method and the constrained curve fitting. We also calculate the color singlet and averaged free energies and evaluate the charmonium spectrum with the potential model analysis. The relation between the lattice result of the...
متن کاملCharmonium in finite temperature lattice QCD
It is widely believed that the Quantum Choromodynamics (QCD) exhibits a phase transition at some temperature Tc, and quarks and gluons confined in the low temperature phase are liberated to form “quark gluon plasma”. At the beginning of 2000, CERN reported that the QGP state had been created in the heavy ion collision experiment[1]. In this experiment, the J/ψ suppression [2] is regarded as a k...
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ژورنال
عنوان ژورنال: Nuclear Physics B - Proceedings Supplements
سال: 2004
ISSN: 0920-5632
DOI: 10.1016/s0920-5632(03)02653-7