Lambda(1520) and Sigma(1385) resonance production in Au+Au and p+p collisions at RHIC (sqrt{s_NN}=200 GeV)

Details Lambda(1520) and Sigma(1385) resonance production in Au+Au and p+p collisions at RHIC (sqrt{s_NN}=200 GeV) Lambda(1520) and Sigma(1385) resonance production in Au+Au and p+p collisions at RHIC (sqrt{s_NN}=200 GeV)

2003-07-14

arxiv.org/abs/nucl-ex/0307013v1

J.Phys. G30 (2004) S549-S555

Physics

Nuclear Physics

Nuclear Experiment

6 pages, 10 figures, To appear in the proceedings of the 7th International Conference on Strangeness in Quark Matter (SQM 2003

Scientific paper

10.1088/0954-3899/30/1/067

The production of Lambda(1520) in p+p and Au+Au collisions provided by the RHIC at sqrt{s_NN}=200 GeV are investigated using the STAR detector. A preliminary Sigma(1385) signal is also shown. Models predict that a late rescattering phase in ultra-relativistic heavy ion collisions should lower the measured yields of these resonances. This reduction is presently confirmed through the Lambda(1520)/Lambda ratio which has been calculated for p+p collisions and compared with Au+Au collisions.

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