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Gießen 2007 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 26: Physik mit schweren Ionen

HK 26.4: Vortrag

Mittwoch, 14. März 2007, 12:00–12:15, F

New Experimental Approach for Isochronous Mass Measurements at the FRS-ESR Facility — •Ronja Knöbel1,2, Hans Geissel1,2, Sergey Litvinov1,2, Yuri Litvinov1,2, Baohua Sun1,3, Karl Beckert1, Peter Beller1, Fritz Bosch1, David Boutin1,2, Carsten Brandau1, Lixin Chen1,2, Christina Dimopoulou1, Benjamin Fabian2, Marc Hausmann4, Otto Klepper1, Christophor Kozhuharov1, Jan Kurcewicz1, Marco Mazzocco1, Fernando Montes1, Gottfried Münzenberg1, Agatino Musumarra5, Chiara Nociforo1, Fritz Nolden1, Wolfgang Plaß2, Christoph Scheidenberger1,2, Markus Steck1, Helmut Weick1, Nicolas Winckler1,2, and Martin Winkler11GSI, Darmstadt,Germany — 2II. Physikalisches Institut,Justus-Liebig-Universität, Gießen, Germany — 3Peking University, Beijing,China — 4Michigan State University, East Lansing,USA — 5INFN-LNS Catania, Italy

At GSI the combination of the fragment separator FRS and the cooler-storage ring ESR is used to perform high accuracy mass and lifetime measurements of exotic nuclei. Operating the ESR in the isochronous mode allows measurements of the masses of exotic nuclei with half-lives down to several ten microseconds. By additional determination of the magnetic rigidity at the dispersive midplane of the FRS the mass resolving power could be significantly improved. A recently performed experiment with neutron-rich fission fragments will give access to new masses and therefore important information for investigations in nuclear structure and astrophysics.

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