Strangelet and hypernucleus production in 11.5 A GeV c(-1) heavy-ion collisions

摘要

We report on the latest results for charged and neutral strangelets for Experiment 864. Approximately, 30 x 10(9) 10% most central collisions were sampled and no strangelets with A < 100 and lifetimes greater than 50 ns were observed, To understand the coalescence mechanism for strangeness better, light hypernuclei production has been studied. In E864 we looked for H-4() and H-3(Lambda) that may be formed in high-energy, heavy-ion collisions through coalescence of nuclear fragments and hyperons and can be detected through their mesonic decay products (He-4, pi (-)) and (He-3, pi (-)). The preliminary results from 13.3 x 10(9) 10% most central Au-Pt collisions at 11.5 A GeV c(-1) are presented. [References: 15]