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Köln 2004 – scientific programme

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HK: Physik der Hadronen und Kerne

HK 10: Poster Session: Nuclear Structure/Spectroscopy

HK 10.29: Poster

Tuesday, March 9, 2004, 13:30–15:30, Foyer

Structure of neutron-rich Be- and C- Isotopes — •H. G. Bohlen1, W. von Oertzen1, R. Kalpakchieva2, T. N. Massey3, B. Gebauer1, T. Kokalova1, M. Milin1, A. A. Ogloblin4, Ch. Schulz 1, and S. Thummerer11Hahn-Meitner-Institut, Glienicker Str. 100, 14109 Berlin, Germany — 2Flerov Laboratory of Nuclear Reactions, JINR, 141980 Dubna, Russia — 3Dept. of Physics and Astronomy, Ohio University, Athens, Ohio 45701-2979, USA — 4IGNP, RRC Kurchatov Institute, Kurchatov Sq. 1, Moscow 123 182, Russia

The neutron-rich Be-isotopes 10,11,12Be and the C-isotopes 16,17C have been investigated with a number of transfer reactions. Each reaction is chosen to populate specific structures of these isotopes with distinct selectivity. In this way levels of single-particle, particle-hole and molecular character can be distinguished, and tentative spin-parity assignments could be made. Molecular structures are identified as rotational bands, which have large moments-of-inertia. Particle-hole structures are analyzed in the weak-coupling model or as core excitations. The different configurations are populated in the neutron-rich isotopes by one-, two- or three-neutron transfer, by proton pickup reactions and also by charge-exchange reactions.

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