Frankfurt 2014 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 60: Hadronenstruktur und -spektroskopie
HK 60.3: Vortrag
Freitag, 21. März 2014, 14:45–15:00, HZ 3
Antiproton Annihilation and Meson Production on Nuclei — •Stefanie Lourenço1, Horst Lenske1 und Slawomir Wycech1,2 — 1Institut für Theoretische Physik, Universität Gießen — 2National Centre for Nuclear Studies, Hoza 69, 00-681, Warsaw, Poland
With the study of hadron and meson production in antinucleon-nucleus reactions a broad spectrum of final particle configurations and physics phenomena become accessible. Our approach is directed towards investigations of non-strangeness meson production and strangeness channels, ranging from elementary processes in antiproton-proton interactions and antiproton-nucleus collisions to the production of hypernuclei. We are investigating coherent meson production in antiproton-nucleus reactions, intended as exploratory studies for the PANDA experiment and, if realized at a later stage of FAIR, also for the nuclear structure-oriented AIC proposal. The underlying fundamental antinucleon-nucleon and meson-nucleon interactions enter into the optical potentials, which are folded with Hartree-Fock-Bogoliubov nuclear densities. Existing approaches to pion nucleus interactions have been extended to higher energies beyond the Δ-resonance. A phenomenological ansatz for the antinucleon-nucleon interaction, describing the whole energy range up to plab=15 GeV/c is presented. Cross sections are shown for the elementary processes and future experiments at FAIR.
Supported by DFG (Le439/8-2, Le439/7-1) and HIC for FAIR