Köln 2004 – wissenschaftliches Programm
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HK: Physik der Hadronen und Kerne
HK 10: Poster Session: Nuclear Structure/Spectroscopy
HK 10.21: Poster
Dienstag, 9. März 2004, 13:30–15:30, Foyer
Two Neutron Transfer Reactions with 10Be Targets* — •W. Schwerdtfeger1, C. Alvarez1, B. Bruyneel2, T. Faestermann3, R. Gernhäuser3, D. Habs1, T. Kröll3, R. Krücken3, M. Lauer4, R. Lutter1, M. Mahgoub3, H.J. Maier1, T. Morgan1, M. Münch3, O. Niedermaier4, P. Reiter2, o. Schaile1, H. Scheit4, P. Thirolf1, W. von Oertzen5, N. Warr2, and H. Wolter1 — 1Sektion Physik, Ludwig Maximilians Universität München — 2Institut für Kernphysik, Köln — 3E12, Technische Universität München — 4Max Plank Institut, Heidelberg — 5Hahn Meitner Institut, Berlin
Transfer reactions enable to investigate the shape coexistence of e.g. deformed and spherical 0+ states in Mg isotopes around the island of inversion at N ≈ 20. 2n transfer reactions from a radioactive 10Be target provide a distinct trigger via the two α particles ejected from the intermediate 8Be reaction product. The 10Be targets (t1/2 = 1.6 · 106 a) with a thickness of ≈ 110 µ g/cm2 were produced by a micro-evaporation module onto a carbon backing of ≈ 40 µ g/cm2. In order to estimate the cross section of the 2n transfer 10Be(30Mg,32Mg)8Be, which is intended to be performed at REX-ISOLDE, the preparatory reaction 10Be(26Mg,28Mg)8Be has been studied at the MINIBALL γ-spectrometer in Cologne. For a better understanding theoretical DWBA-calculations using the Coupled-Channel Code FRESCO [1] have been performed. *Supported by DFG under contract number HA 1101/6-3
[1] I.J. Thompson, Comp. Phys. Rep. 7 (1987) pp 167-212