Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1848378 | Nuclear Physics B - Proceedings Supplements | 2006 | 6 Pages |
Abstract
We present a canonical method where the properties of QCD are directly obtained as a function of the baryon density Ï, rather than the chemical potential μ. We apply this method to the determination of the phase diagram of four-flavor QCD. For a pion mass mÏâ¼350 MeV, the first-order transition between the hadronic and the plasma phase gives rise to a co-existence region in the T-Ï plane, which we study in detail, including the associated interface tension. We obtain accurate results for systems containing up to 30 baryons and quark chemical potentials μ, up to 2T. Our T-μ phase diagram agrees with the literature when μTâ²1. At larger chemical potential, we observe a “bending down” of the phase boundary. We compare the free energy in the confined and deconfmed phase with predictions from a hadron resonance gas and from a free massless quark gas respectively.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
Philippe de Forcrand, Slavo Kratochvila,