Abstract
New measurements have been made with the reaction to excite the rotational band in . Coupled-channel Born approximation calculations fail to account for the angular distribution of the transition to the member of this band, although they describe well that for the transition to the member. Particularly significant is the failure of the cross section for the transition to decrease at forward angles. This behavior is in dis-agreement with that expected for unnatural parity transitions in () reactions which proceed through multistep processes involving inelastic excitations. The implications of these results for the reaction mechanism are discussed.
NUCLEAR REACTIONS , MeV; measured for MeV. Compared to CCBA calculations.
- Received 18 March 1975
DOI:https://doi.org/10.1103/PhysRevC.12.332
©1975 American Physical Society