Elsevier

Nuclear Physics A

Volume 99, Issue 2, 19 June 1967, Pages 305-320
Nuclear Physics A

The structure of the sd-shell nuclei: (III). Effect of non-central interactions

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Abstract

The effects of non-central interactions on 18O, 18F, 19O and 19F are studied by the shell model. These effects are not important in 18O and 19F; but the level structures of 18F and 19O are found to be affected by these non-central interactions. The possibility of the core excitation is also pointed out. The levels at 1.08 MeV and 2.10 MeV and the 1+ level at 1.7 MeV in 18F belong possibly to the core-excited states.

Phenomenological matrix elements found in this paper are compared with the reaction matrices derived from the Hamada-Johnston potential.

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