Berlin 2005 – wissenschaftliches Programm

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HK: Physik der Hadronen und Kerne

HK 22: Postersitzung

HK 22.25: Poster

Montag, 7. März 2005, 16:30–18:00, TU MA141

Mass and Lifetime Measurements of Exotic Nuclei — •Helmut Weick — GSI Darmstadt, Germany

Precision measurements of nuclear masses and lifetimes of stored exotic nuclei at relativistic energies and studies with isomeric beams are planned [1]. The new international facility FAIR [2] with production and separation of exotic nuclear beams in the new fragment separator Super-FRS [3] will yield access to interesting nuclei near and at the driplines which cannot be accessed with present facilities.

The measurements can be done after fast stochastic cooling in the collector ring (CR) and electron cooling of the exotic ions in the new experimental storage ring (NESR) using Schottky pickups and particle detectors for lifetime measurements. Very shortlived nuclei can be investigated directly in the CR using an isochronous mode of the ring together with a ToF detector or fast resonant pickups. The planned experiments are triggered by the successful experimental program at the present FRS-ESR facilities [4].

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[1] http://www.gsi.de/documents/DOC-2004-Apr-89-1.pdf

[2] http://www.gsi.de/GSI-Future/cdr/

[3] H. Geissel et al., Nucl. Instr. Meth in Phys Res. B204 (2003) 71.

[4] see group report ’Mass and Half-Live Measurements at FRS-ESR facilities at GSI’ by Yu. Litvinov