Observable implications of geometrical and dynamical aspects of freeze-out in heavy ion collisions

Details Observable implications of geometrical and dynamical aspects of freeze-out in heavy ion collisions Observable implications of geometrical and dynamical aspects of freeze-out in heavy ion collisions

2003-12-07

arxiv.org/abs/nucl-th/0312024v3

Phys.Rev. C70 (2004) 044907

Physics

Nuclear Physics

Nuclear Theory

36 pages, 56 figures, 2 tables; version accepted for publication in PRC: some figures, references and discussion added; now al

Scientific paper

10.1103/PhysRevC.70.044907

Using an analytical parameterization of hadronic freeze-out in relativistic heavy ion collisions, we present a detailed study of the connections between features of the freeze-out configuration and physical observables. We focus especially on anisotropic freeze-out configurations (expected in general for collisions at finite impact parameter), azimuthally-sensitive HBT interferometry, and final-state interactions between non-identical particles. Model calculations are compared with data taken in the first year of running at RHIC; while not perfect, good agreement is found, raising the hope that a consistent understanding of the full freeze-out scenario at RHIC is possible, an important first step towards understanding the physics of the system prior to freeze-out.

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