Production of multi-strangeness hypernuclei and the YN-interaction

We investigate for the first time the influence of hyperon–nucleon (YN) interaction models on the strangeness dynamics of antiproton–nucleus and Ξ–nucleus interactions. Of particular interest is the formation of bound multi-strangeness hypermatter in reactions relevant for P¯ANDA. The main features of two well-established microscopic approaches for YN-scattering are first discussed and their results are then analyzed such that they can be applied in transport-theoretical simulations. The transport calculations for reactions induced by antiproton beams on a primary target including also the secondary cascade beams on a secondary target show a strong sensitivity on the underlying YN-interaction. In particular, we predict the formation of Ξ-hypernuclei with an observable sensitivity on the underlying ΞNΞN-interaction. We conclude the importance of our studies for the forthcoming research plans at FAIR.