Light unbound nuclear systems beyond the dripline [Elektronische Ressource] / von Yuliya Aksyutina

Light Unbound Nuclear Systemsbeyond the DriplineDissertationzur Erlangung des Doktorgradesder Naturwissenschaftenvorgelegt beim Fachbereich Physikder Johann Wolfgang Goethe-Universit¨atin Frankfurt am MainvonYuliya Aksyutinaaus Kharinovo (Russland)Frankfurt am Main 2009(D30)vom Fachbereich Physik derJohann Wolfgang Goethe-Universit¨at als Dissertation angenommen.Dekan: Prof. Dr. D.-H. RischkeGutachter: Prof. Dr. J. StrothDr. R. ReifarthDatum der Disputation: 14 August 20096AbstractStarting from the first observation of the halo phenomenon 20 years ago,more and more neutron-rich light nuclei were observed. The study of unstablenuclear systems beyond the dripline is a relatively new branch of nuclear physics.In the present work, the results of an experiment at GSI (Darmstadt) with re-8 11 14lativistic beams of the halo nuclei He, Li and Be with energies of 240, 280and 305 MeV/nucleon, respectively, impinging on a liquid hydrogen target arediscussed. Neutron/proton knockout reactions lead to the formation of unboundsystems, followedbytheirimmediatedecay. Theexperimental setup, consistingoftheneutrondetectorLAND,thedipolespectrometerALADINanddifferenttypesof tracking detectors, allows the reconstruction of the momentum vectors of allreaction products measured in coincidence. The properties of unbound nuclei areinvestigated by reconstructing the relative-energy spectra as well as by studyingtheangularcorrelationsbetween thereactionproducts.