Target dependence of central rapidity Λ production in sulfur-nucleus collisions at 200 GeV/cper nucleon
- 1 August 1992
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review C
- Vol. 46 (2) , 727-735
- https://doi.org/10.1103/physrevc.46.727
Abstract
Central rapidity Λ production has been measured in sulfur collisions with Cu, Ag, and Pb at 200 GeV/c per nucleon. Lambdas produced in these collisions were identified by their charged decays recorded by a time projection chamber. The Λ yields are compared as a function of target mass. For each target, the yields are reported as a function of Λ transverse kinetic energy and zero degree energy (a measure of collision centrality). In each system, the data exceed predictions of the v e n u s size-2(4.02) model of sulfur-nucleus collisions. The observed excesses show no obvious variation with collision centrality from moderate to highly central collisions.Keywords
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