Non-equilibrium hadronization and constituent quark number scaling

Details Non-equilibrium hadronization and constituent quark number scaling Non-equilibrium hadronization and constituent quark number scaling

2011-02-11

arxiv.org/abs/1102.2310v1

Phys.Rev.C83:044903,2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

submitted to Physical Review C

Scientific paper

10.1103/PhysRevC.83.044903

The constituent quark number scaling of elliptic flow is studied in a non-equilibrium hadronization and freeze-out model with rapid dynamical transition from ideal, deconfined and chirally symmetric Quark Gluon Plasma, to final non-interacting hadrons. In this transition a Bag model of constituent quarks is considered, where the quarks gain constituent quark mass while the background Bag-field breaks up and vanishes. The constituent quarks then recombine into simplified hadron states, while chemical, thermal and flow equilibrium break down one after the other. In this scenario the resulting temperatures and flow velocities of baryons and mesons are different. Using a simplified few source model of the elliptic flow, we are able to reproduce the constituent quark number scaling, with assumptions on the details of the non-equilibrium processes.

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