Köln 2004 – wissenschaftliches Programm

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PV: Plenarvorträge

PV XXVIII

PV XXVIII: Plenarvortrag

Freitag, 12. März 2004, 12:00–12:30, P

Structure of few-nucleon systems near and beyond the dripline — •Haik Simon — Gesellschaft für Schwerionenforschung mbH, D–64291 Darmstadt

The structure of few-nucleon systems at the border lines to proton and neutron instability is one of the fundamental questions in modern nuclear physics. Ground state properties as well as few-body correlations of such weakly bound nuclear systems can quantitatively investigated by utilizing high-energy (0.2–1.5 GeV/nucleon) radioactive beams. Recent results from measurements of breakup reactions with light (He–O) neutron-rich nuclei close to the dripline performed at the GSI accelerator facility will be presented. Nucleon-removal reactions populating states in the (A-1) nucleus provide access to the momentum content of the valence nucleons wave functions, e.g., via the measurement of momentum distributions and cross sections. Spectroscopic information can also be obtained for ground and excited states of nuclei, even beyond the dripline. More detailed information can be gathered on, e.g. three-body correlations, from the kinematically complete measurement of the breakup products. Energy and momentum transfer in the reactions as well as clusterization of the nuclei under study can be investigated further, when using for example, a liquid hydrogen target in conjunction with a measurement of the recoil protons.

Supported by BMBF and GSI.