Mainz 2012 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 38: Hadronenstruktur und -spektroskopie
HK 38.4: Vortrag
Donnerstag, 22. März 2012, 17:45–18:00, RW 1
In-Medium Properties of the η′ Meson⋆ — •Mariana Nanova — II. Physikalisches Institut, Universität Giessen, Heinrich-Buff-Ring 16, 35392 Giessen
The attenuation of η′-meson in cold nuclear matter has been studied in photonuclear reactions off LH2, LD2,12C, 40Ca, 93Nb and 208Pb nuclei. The experiment was performed at the ELSA accelerator in Bonn with the combined setup of the Crystal Barrel and TAPS detectors. The inelastic η′N cross section and the in-medium width are deduced and compared to theoretical predictions. Effects of photon shadowing and secondary production processes are discussed. Momentum distributions of η′-mesons are compared for the different targets. The feasibility of planned experiments searching for η′-mesic states is analyzed.
⋆Funded by DFG(SFB/TR-16)