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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. Peter^1,2, W. von Oertzen^1,3, H.G. Bohlen³, B. Gebauer³, J. Gerl², M. Kaspar², I. Kozhoukharov², T. Kröll², M. Rejmund², H. Schaffner², C. Schlegel², S. Thummerer³, and H.J. Wollersheim² — ¹Freie 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