Formation of double-$\Lambda$ hypernuclei at PANDA

Abstract

We study the formation of single- and double-$\Lambda$ 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 $\bar{p}$-induced reactions fairly well. We then focus on the formation of double-$\Lambda$ hypernuclei in high energy $\bar{p}$-nucleus collisions on a primary target including the complementary $\Xi$-induced reactions to a secondary one, as proposed by the PANDA collaboration. Our results show that a copious production of double-$\Lambda$ hyperfragments is possible at PANDA. In particular, we provide first theoretical estimations on the double-$\Lambda$ production cross section, which strongly rises with decreasing energy of the secondary $\Xi$-beam.

20 pages, 11 figures, Nuclear Physics A, in press

References in corpus (9)

• Shapiro delay measurement of a two solar mass neutron star
• In-medium nuclear interactions of low-energy hadrons
• Production of excited double hypernuclei via Fermi breakup of excited strange systems
• The hyperon-nucleon interaction: conventional versus effective field theory approach
• Fragment formation in proton induced reactions within a BUU transport model
• Antiproton-nucleus collisions simulation within a kinetic approach with relativistic mean fields
• Non-Linear derivative interactions in relativistic hadrodynamics
• Energy Dependent Isospin Asymmetry in Mean-Field Dynamics
• Detector developments for the hypernuclear programme at PANDA

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• Particle production in antiproton induced nuclear reactions
• In-medium effects on hypernuclear formation
• Strangeness production and hypernuclear formation in proton and antiproton induced reactions
• Nuclear fragmentation induced by low-energy antiprotons within a microscopic transport approach
• Recent progress on superstrange dynamics
• What can we know about hypernuclei via analysis of bremsstrahlung photons?
• SU(3) Approach to Hypernuclear Interactions and Spectroscopy
• Production and Interactions of Hyperons and Hypernuclei