The continuum limit of quark number susceptibilities
High Energy Physics - Lattice
2009-11-07 v1 High Energy Physics - Phenomenology
Nuclear Theory
Abstract
We report the continuum limit of quark number susceptibilities in quenched QCD. Deviations from ideal gas behaviour at temperature T increase as the lattice spacing is decreased from T/4 to T/6, but a further decrease seems to have very little effect. The measured susceptibilities are 20% lower than the ideal gas values, and also 10% below the hard thermal loop (HTL) results. The off-diagonal susceptibility is several orders of magnitude smaller than the HTL results. We verify a strong correlation between the lowest screening mass and the susceptibility. We also show that the quark number susceptibilities give a reasonable account of the Wroblewski parameter, which measures the strangeness yield in a heavy-ion collision.
Keywords
Cite
@article{arxiv.hep-lat/0202006,
title = {The continuum limit of quark number susceptibilities},
author = {Rajiv V. Gavai and Sourendu Gupta},
journal= {arXiv preprint arXiv:hep-lat/0202006},
year = {2009}
}
Comments
8 pages, 5 figures