Hadronic spectral functions above the QCD phase transition

We extract the spectral functions in the scalar, pseudo-scalar, vector, and axial-vector channels above the deconfinement phase transition temperature (T,) using the maximum entropy method (MEM). We use anisotropic lattices, 32(3) x 32, 40, 54, 72, 80, and 96 (corresponding to T = 23T(c) 0.8T(c)), 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 T-c and in addition that there is a qualitative change in the state of the deconfined matter between 1.5T(c) and 2T(c).