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Bochum 2009 – wissenschaftliches Programm

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HK: Fachverband Hadronen und Kerne

HK 49: Nuclear Structure and Dynamics II

HK 49.2: Vortrag

Mittwoch, 18. März 2009, 14:30–14:45, H-ZO 50

Formation of hypernuclei in reactions induced by heavy-ion and hadron beams — •Theodoros Gaitanos, Horst Lenske, and Ulrich Mosel — Institut für Theoretische Physik, Universität Giessen, Germany

The formation of fragments with strangeness degrees of freedom (hypernuclei) within the GiBUU dynamical transport model combined with a statistical multifragmentation model (SMM) is investigated in reactions induced by high energy heavy-ion and hadron beams. Such reactions, which will be experimentally studied by the HypHI and PANDA collaborations at the FAIR facility at GSI, are especially well suited for the production of single and double strangeness hypernuclei allowing to study the nucleon-hyperon and hyperon-hyperon interactions. A detailed discussion on the applicability and limitations of the theoretical model are given. In particular, improvements of the present transport approach with respect to a better combination with statistical models of fragmentation and a better overall baryon dynamics at relativistic energies are investigated. Finally, theoretical predictions on spectra and inclusive cross sections of single ΛAX and double ΛΛAX hypernuclei (X=HHe) in spectator fragmentation in reactions induced by light heavy-ion beams (12C+12C at 2AGeV) and high energy hadron beams are presented. The results are relevant for planning future experiments on hypernuclear physics at the new GSI- and J-PARC-facilities.
Work supported by BMBF.

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