Evidence for 3p-2h rotational bands in 17O

Comparison is made, in the weak coupling hypothesis, between the transitions to positive parity 17O states selectively excited in the 14C(6Li, t)17O reaction at E(6Li) = 34 MeV, and those from the 16O(6Li, t)19Ne reaction at E(6Li) = 36 MeV, leading to the Ksup(π) = 1/2+ rotational band states in 19Ne. The good results show the validity of the weak coupling hypothesis, and indicate the existence of two 3p-2h bands in the 17O nucleus. The candidates for L = 0, 2, 4 members of the T = 1/2 rotational band for L = 4 member of the T = 3/2 band are suggested. These findings are confirmed by the extracted 3He-spectroscopic strengths. (orig.)