Seminar in Hadronic Physics

Parton Recombination:
A comprehensive model for bulk hadronization at RHIC?

Steffen Bass

Duke University

Parton recombination models have been very successful in explaining data taken at RHIC on hadron spectra, nuclear modification factors and elliptic flow emission patterns in Au+Au collisions at transverse momenta above 2 GeV/c, which have exhibited features which could not be understood in the framework of basic perturbative QCD.

Recently, more sophisticated dynamical correlation observables, such as jet-like two particle correlations have become available. I will show how these observables can be addressed by the recombination approach through incorporating two-particle correlations into the quark distributions which are used as initial condition for the calculation.

In addition, I will discuss entropy-conservation and charge fluctuations in the recombination approach. Finally, I will investigate the possible effect realistic light-cone wave-functions including higher Fock-states may have on the well-known elliptic flow valence-quark number scaling law.