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arXiv · hep-lat/0208059

Hadronic Spectral Functions above the QCD Phase Transition

M. Asakawa·T. Hatsuda·Y. Nakahara
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Abstract

We extract the spectral functions in the scalar, pseudo-scalar, vector, and axial vector channels above the deconfinement phase transition temperature (Tc) using the maximum entropy method (MEM). We use anisotropic lattices, 32^3 * 32, 40, 54, 72, 80, and 96 (corresponding to T = 2.3 Tc --> 0.8 Tc), with the renormalized anisotropy xi = 4.0 to have enough temporal data points to carry out the MEM analysis. Our result suggests that the spectral functions continue to possess non-trivial structures even above Tc and in addition that there is a qualitative change in the state of the deconfined matter between 1.5 Tc and 2 Tc.

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M. Asakawa, T. Hatsuda, Y. Nakahara. 2002-08-27. Hadronic Spectral Functions above the QCD Phase Transition. https://doi.org/10.1016/s0920-5632(03)01559-7

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