Hypernuclei formation at CERN and SIS energies

Abstract

We investigate whether hypernuclei can be produced at CERN (200 GeV/n) or SIS (2 GeV/n) energies. Employing microscopical theories —VENUS for CERN energies and QMD for SIS energies — we calculate the primordial distribution of Λ's K −'s and π's. We find that at CERN energies these particles cannot be trapped in the spectator matter, thus hypernuclei formation is unlikely. At SIS energies further collisions can slow down the Λ's considerably, thus they can be trapped. However, the probability of hypernuclei formation remains low.