Strange Baryon Resonance Production in √sNN=200  GeV p+p and Au+Au Collisions

Abelev, B. I. and Planinić, Mirko and Poljak, Nikola and Zuo, J. X. (STAR Collaboration) (2006) Strange Baryon Resonance Production in √sNN=200  GeV p+p and Au+Au Collisions. Physical Review Letters, 97 (13). pp. 132301-6. ISSN 0031-9007

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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 p_T 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.

Item Type: Article
Keywords: p p, colliding beams, scattering, heavy ion, baryon resonance, hadroproduction, Sigma(1385), yield, Lambda(1520), yield
Date: September 2006
Subjects: NATURAL SCIENCES > Physics
Additional Information: Copyright (2006) by the American Physical Society.
Divisions: Faculty of Science > Department of Physics
Project code: 0119257
Publisher: American Physical Society
Depositing User: Gordana Stubičan Ladešić
Date Deposited: 01 Jul 2014 13:07
Last Modified: 01 Jul 2014 13:07

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