GDR Feeding of the Highly-Deformed Band in 42Ca

/ Authors

M.Kmiecik, A.Maj, J.Styczen, P.Bednarczyk, M.Brekiesz, J.Grebosz, M.Lach, W.Meczynski, M.Zieblinski, K.Zuber

and 12 more authors

A.Bracco, F.Camera, G.Benzoni, B.Million, S.Leoni, O.Wieland, B.Herskind, D.Curien, N.Dubray, J.Dudek, N.Schunck, K.Mazurek

/ Abstract

The γ -ray spectra from the decay of the GDR in the compound nucleus reaction 18 O+ 28 Si at bombarding energy of 105 MeV have been measured in an experiment using the EUROBALL IV and HECTOR arrays. The obtained experimental GDR strength function is highly fragmented, with a low energy ( ≈ 10 MeV) component, indicating a presence of a large deformation and Coriolis eﬀects. In addition, the preferential feeding of the highly-deformed band in 42 Ca by this GDR low energy component is observed.