Abstract
We study the formation of single- and double- Λ hypernuclei in antiproton-induced reactions relevant for the forthcoming PANDA experiment at FAIR. We use the Giessen Boltzmann–Uehling–Uhlenbeck (GiBUU) transport model with relativistic mean-fields for the description of non-equilibrium dynamics and the statistical multifragmentation model (SMM) for fragment formation. This combined approach describes the dynamical properties of strangeness and fragments in low energy p ¯ -induced reactions fairly well. We then focus on the formation of double- Λ hypernuclei in high energy p ¯ -nucleus collisions on a primary target including the complementary Ξ -induced reactions to a secondary one, as proposed by the PANDA Collaboration. Our results show that a copious production of double- Λ hyperfragments is possible at PANDA. In particular, we provide first theoretical estimations on the double- Λ production cross section, which strongly rises with decreasing energy of the secondary Ξ -beam.
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