Author Info

Abstract

We report the measurements of Σ(1385) and Λ(1520) production in p+p and Au+Au collisions at √sNN=200  GeV from the STAR Collaboration. The yields and the pT spectra are presented and discussed in terms of chemical and thermal freeze-out conditions and compared to model predictions. Thermal and microscopic models do not adequately describe the yields of all the resonances produced in central Au+Au collisions. Our results indicate that there may be a time span between chemical and thermal freeze-out during which elastic hadronic interactions occur.

Disciplines

Physics

Number of Pages

6

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This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Physical Society.

NOTE: At the time of publication, the author Thomas Gutierrez was not yet affiliated with Cal Poly.

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URL: https://digitalcommons.calpoly.edu/phy_fac/535