Molecular and cluster structures in 18O

W von Oertzen, T Dorsch, HG Bohlen, R Kruecken, T Faestermann, R Hertenberger, T Kokalova, M Mahgoub, M Milin, Carl Wheldon, HF Wirth

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Abstract

We have studied the multi-nucleon transfer reaction C-12(Li-7, p) at E-lab = 44MeV, populating states in the oxygen isotope O-18. The experiments were performed at the Tandem accelerator of the Maier-Leibniz Laboratory in Munich using the high-resolution Q3D magnetic spectrograph. States were populated up to an excitation energy of 21.2MeV with an overall energy resolution of 45keV, and 30 new states of O-18 have been identified. The structure of the rotational bands observed is discussed in terms of cluster bands with the underlying cluster structures: C-14 circle times alpha and C-12 circle times 2n circle times alpha. Because of the broken intrinsic reflection symmetry in these structures the corresponding rotational bands appear as parity doublets.
Original languageEnglish
Pages (from-to)17-33
Number of pages17
JournalEuropean Physical Journal A
Volume43
Issue number1
DOIs
Publication statusPublished - 1 Jan 2010

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