ar X iv : h ep - p h / 01 02 24 8 v 2 5 M ay 2 00 3 Phase transition between three - and two - flavor QCD ?

ar X iv : h ep - l at / 0 11 10 13 v 1 8 N ov 2 00 1 Study of 3 - flavor QCD Finite Temperature Phase Transition with Staggered Fermions ∗

We have studied the 3-flavor, finite temperature, QCD phase transition with staggred fermions on an Nt = 4 lattice. By studying a variety of quark masses we have located the critical point, mc, where the first order 3-flavor transition ends as lying in the region 0.32 ≤ mc ≤ 0.35 in lattice units.

ar X iv : h ep - p h / 02 05 07 9 v 1 8 M ay 2 00 2 CONSTRUCTING CONFINEMENT

The interaction between static quarks is derived by applying many-body techniques to QCD in Coulomb gauge. The result is shown to be exact in the IR and UV limits, and agrees remarkably well with lattice computations.

ar X iv : h ep - p h / 07 02 29 6 v 1 2 8 Fe b 20 07 QCD phase diagram and charge fluctuations

We discuss the phase structure and fluctuations of conserved charges in two flavor QCD. The importance of the density fluctuations to probe the existence of the critical end point is summarized. The role of these fluctuations to identify the first order phase transition in the presence of spinodal phase separation is also discussed.

ar X iv : h ep - p h / 03 05 02 3 v 2 9 M ay 2 00 3 Is Quark Saturation Related to the Pauli Principle ? ∗

Below the saturation momentum the sea quark occupation number reaches a pure number, independent of any parameters in QCD, reminiscent of a Pauli Principle result. We argue, however, that the Pauli Principle plays no role in this result.

ar X iv : h ep - p h / 02 05 01 6 v 1 2 M ay 2 00 2 Scalar a 0 ( 980 ) meson in φ → π 0 ηγ decay