2008

Resonance Recombination Model and Quark Distribution Functions in the Quark-Gluon Plasma

Ravagli, L., van Hees, H., Rapp, R.

Understand

We investigate the consequences of space-momentum correlations in quark phase-space distributions for coalescence processes at the hadronization transition.

Thus far it has been proved difficult to reconcile such correlations with the empirically observed constituent quark number scaling (CQNS) at the Relativistic Heavy-Ion Collider (RHIC).
To address this problem we combine our earlier developed quark recombination model with quark phase-space distributions computed from relativistic Langevin simulations in an expanding Quark-Gluon Plasma (QGP).
Hadronization is based on resonance formation within a Boltzmann equation which recovers thermal equilibrium and obeys energy conservation in the quark-coalescence process, while the fireball background is adjusted to hydrodynamic simulations of semi-central Au-Au collisions at RHIC.

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