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Particle Correlations at RHIC - Scrutiny of a Puzzle

Sven Soff·Steffen A. Bass·David H. Hardtke·Sergey Y. Panitkin
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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.

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Sven Soff, Steffen A. Bass, David H. Hardtke, Sergey Y. Panitkin. 2002-09-19. Particle Correlations at RHIC - Scrutiny of a Puzzle. https://doi.org/10.1016/s0375-9474(02)01492-6

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