Enhanced strange baryon production in Au+Au collisions compared to at GeV

BI Abelev, MM Aggarwal, Z Ahammed… - Physical Review C …, 2008 - APS
BI Abelev, MM Aggarwal, Z Ahammed, BD Anderson, D Arkhipkin, GS Averichev, Y Bai…
Physical Review C—Nuclear Physics, 2008APS
We report on the observed differences in production rates of strange and multistrange
baryons in Au+ Au collisions at s NN= 200 GeV compared to p+ p interactions at the same
energy. The strange baryon yields in Au+ Au collisions, when scaled down by the number of
participating nucleons, are enhanced relative to those measured in p+ p reactions. The
enhancement observed increases with the strangeness content of the baryon, and it
increases for all strange baryons with collision centrality. The enhancement is qualitatively …
We report on the observed differences in production rates of strange and multistrange baryons in Au+Au collisions at GeV compared to interactions at the same energy. The strange baryon yields in Au+Au collisions, when scaled down by the number of participating nucleons, are enhanced relative to those measured in reactions. The enhancement observed increases with the strangeness content of the baryon, and it increases for all strange baryons with collision centrality. The enhancement is qualitatively similar to that observed at the lower collision energy GeV. The previous observations are for the bulk production, while at intermediate GeV/, the strange baryons even exceed binary scaling from yields.
American Physical Society
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