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Bochum 1998 – wissenschaftliches Programm

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HK: Hadronen und Kerne

HK 38: Spectroscopy 104 ≤ A < 140

HK 38.5: Vortrag

Dienstag, 17. März 1998, 18:00–18:15, D

Neutron-pair transfer between very heavy nuclei[*] — •I. Peter1,2, W. von Oertzen1,3, H.G. Bohlen3, B. Gebauer3, J. Gerl2, M. Kaspar2, I. Kozhoukharov2, T. Kröll2, M. Rejmund2, H. Schaffner2, C. Schlegel2, S. Thummerer3, and H.J. Wollersheim21Freie Universität Berlin — 2Gesellschaft für Schwerionenforschung Darmstadt — 3Hahn-Meitner-Institut Berlin

At GSI an experiment has been performed to investigate neutron-transfer phanomena between the superfluid semimagic nuclei 118Sn and 206Pb with the method of γ-spectroscopy. The experimental set-up consists of five Euroball-Cluster detectors and the Darmstadt-Heidelberg crystal ball for γ-detection and the Pyramid parallelplate avalanche counter to detect scattered particles. At a bombarding energy below the Coulomb barrier multiple Coulomb excitation and neutron transfer reactions have been observed. Neutron transfer probablities determined from the first excited 2+-states have been measured as a function of the distance of closest approach and were used to extract the enhancement factor of neutron pair transfer.

[*] supported by BMBF and GSI

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