Berlin 2005 – wissenschaftliches Programm

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HK: Physik der Hadronen und Kerne

HK 22: Postersitzung

HK 22.21: Poster

Montag, 7. März 2005, 16:30–18:00, TU MA141

Towards 2n Transfer Reactions around the Island of Inversion — •W. Schwerdtfeger¹, B. Bruyneel², T. Faestermann³, R. Gernhäuser³, D. Habs¹, T. Kröll³, R. Krücken³, M. Lauer⁴, R. Lutter¹, 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 Planck Institut, Heidelberg — ⁵Hahn Meitner Institut, Berlin

Transfer reactions enable to investigate the shape coexistence of e.g. super deformed and spherical 0⁺ states in Mg isotopes around the island of inversion at N ≈ 20, because the transfer to first order is shape conserving. Two neutron transfer reactions from a radioactive ¹⁰Be target provide a distinct trigger via the two α particles ejected from the intermediate ⁸Be reaction product. In order to estimate the cross section of the two neutron transfer ¹⁰Be(³⁰Mg,³²Mg)⁸Be, which is intended to be performed at REX-ISOLDE CERN, the preparatory reaction ⁹Be(²⁶Mg,²⁷Mg^⋆)⁸Be (E_lab = 57 MeV) has been studied at the MINIBALL γ-spectrometer in Cologne. First results of this measurement will be presented together with coupled channel DWBA calculations using the code FRESCO[1] for the one neutron as well as for the two neutron transfer reaction.

[1] I.J. Thompson, Comp. Phys. Rep. 7 (1987) pp 167-212