Particle Correlations at RHIC - Scrutiny of a Puzzle

Abstract

We present calculations of two-pion and two-kaon correlation functions in relativistic heavy ion collisions from a relativistic transport model that includes explicitly a first-order phase transition from a thermalized quark-gluon plasma to a hadron gas. We compare the obtained correlation radii with recent data from RHIC. The predicted R_side radii agree with data while the R_out and R_long radii are overestimated. We also address the impact of in-medium modifications, for example, a broadening of the rho-meson, on the correlation radii. In particular, the longitudinal correlation radius R_long is reduced, improving the comparison to data.

4 pages, 3 figures

Cited by in corpus (6)

• Observable implications of geometrical and dynamical aspects of freeze-out in heavy ion collisions
• Phase-space densities and effects of resonance decays in hydrodynamic approach to heavy ion collisions
• Energy dependence of pion interferometry scales in ultra-relativistic heavy ion collisions
• Pion production in d+Au collisions at RHIC energy
• News on Strangeness at Ultrarelativistic Energies - Review of Microscopic Models
• $\pi \Xi$ Correlations: an Interweaving of Resonance Interaction, Channel Coupling and Coulomb Effects