The charmonium states at non-zero temperature are studied on anisotropic lattices with 2 dynamical quark flavours. Non-local operators are used to determine the Nambu-Bethe-Salpeter (NBS) wavefunctions via both conventional fitting methods and the Maximum Entropy Method. The interquark potential is determined from the solution of the Schrodinger equation, given the NBS wavefunction as input following the HAL QCD method. We observe a temperature dependent potential which becomes steeper as the temperature decreases.
@article{arxiv.1306.3140,
title = {Charmonium Potentials at Finite Temperature},
author = {C. R. Allton and P. W. M. Evans and J. -I. Skullerud},
journal= {arXiv preprint arXiv:1306.3140},
year = {2013}
}
Comments
Talk presented at the 30th International Symposium on Lattice Field Theory - Lattice 2012, Cairns, Australia