Köln 2004 – wissenschaftliches Programm

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HK: Physik der Hadronen und Kerne

HK 33: Heavy Ions III

HK 33.5: Vortrag

Mittwoch, 10. März 2004, 15:30–15:45, E

Physics with exotic nuclei at the Low-Energy-Branch of the Super-FRS — •Christoph Scheidenberger — GSI, Darmstadt

The Low-Energy-Branch of the Super-FRS will provide exotic nuclear beams for experiments with slowed-down beams (5...200MeV/u), stopped beams, and ISOL-type beams (10...100keV) of all elements. Equipped with quite versatile instrumentation, it will provide ideal conditions for a broad experimental physics programme. Examples will be presented: high-resolution gamma-ray spectroscopy using the Advanced GAmma-Tracking Array AGATA for the study of Coulomb excitation close to the barrier and nucleon transfer, deep-inelastic and compound reactions. Decay spectroscopy with stopped beams including alpha-, beta- and isomer-spectroscopy of nuclei implanted in thin (active) stoppers will benefit from small range straggling and thus allow for new opportunities in x-ray and electron spectroscopy. ISOL-type beams of all elements, in particular including refractory elements, will be available due to the use of a new hybrid system (in-flight separation, energy focusing, and stopping in a gas cell). The full experimental spectrum of modern low-energy radioactive-beam facilities, such as Penning traps, charge breeders (EBIS), electron-beam ion traps (EBIT), LASER spectroscopy will be used to study neutron rich nuclei. Especially the availability of highly-charged ions in traps will allow for exciting new experiments, such as the study of bound-state beta decay and electron spectroscopy, which can reveal the missing screening for bare nuclei.