Dynamics and freeze-out of hadron resonances at RHIC

Abstract

Yields, rapidity and transverse momentum spectra of ${\Delta }^{++}(1232)$, $\Lambda (1520)$, ${\Sigma }^{\pm }(1385)$ and the meson resonances $K^0(892)$, $\Phi$, ${\rho }^0$ and $f_0(980)$ are predicted. Hadronic rescattering leads to a suppression of reconstructable resonances, especially at low $p_{\perp }$. A mass shift of the $\rho$ of 10 MeV is obtained from the microscopic simulation, due to late stage $\rho$ formation in the cooling pion gas.

Proceedings of the Strange Quark Matter 2003, eprint version differs from published version

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