The nonlocal Polyakov-loop-extended Nambu--Jona-Lasinio (PNJL) model is further improved by including momentum-dependent wave-function renormalization in the quark quasiparticle propagator. Both two- and three-flavor versions of this improved PNJL model are discussed, the latter with inclusion of the (nonlocal) 't Hooft-Kobayashi-Maskawa determinant interaction in order to account for the axial U(1) anomaly. Thermodynamics and phases are investigated and compared with recent lattice-QCD results.
@article{arxiv.1104.0572,
title = {Extensions and further applications of the nonlocal Polyakov--Nambu--Jona-Lasinio model},
author = {Thomas Hell and Kouji Kashiwa and Wolfram Weise},
journal= {arXiv preprint arXiv:1104.0572},
year = {2011}
}
Comments
28 pages, 11 figures, 4 tables; minor changes compared to v1; extended conclusions