Parton coalescence and spacetime

The influence of spacetime dynamics in hadronization via parton coalescence at RHIC is investigated using covariant parton transport theory. Key observables, the quark number scaling of elliptic flow and the enhancement of the p/pi ratio, show strong dynamical effects and differ from earlier results based on the simple coalescence formulas.Comment: Talk presented at the BP2004 Workshop (KFKI/RMKI, Budapest, March 24-27). 8 pages, 8 eps figs, stylefile included. To be published in proceeding

Simulating full QCD at nonzero density using the complex Langevin equation

The complex Langevin method is extended to full QCD at non-zero chemical potential. The use of gauge cooling stabilizes the simulations at small enough lattice spacings. At large fermion mass the results are compared to the HQCD approach, in which the spatial hoppings of fermionic variables are neglected, and good agreement is found. The method allows simulations also at high densities, all the way up to saturation.Comment: 5 pages, 5 figures, PLB version, minor change