Retarded Isoscalar M2 Strength Observed in the Reaction 16O(ppol, ppol')16O(2-, 8.88 MeV) at Ep=40 MeV
Abstract
Measurement of the spin-flip probability in the reaction 10O(ppol, ppol')16O(2-, 8.88 MeV) at Ep=40 MeV yields values that are significantly smaller than those predicted by microscopic distorted-wave Born-approximation calculations. This is interpreted as direct evidence for the dominance of multistep processes in this reaction. Analysis of the data in terms of the spin-flip cross section (spin-flip probability times the differential cross section) yields an isoscalar M2 strength for the 2- which is significantly smaller than that predicted by random-phase-approximation wave functions.
- Publication:
-
Physical Review Letters
- Pub Date:
- October 1978
- DOI:
- 10.1103/PhysRevLett.41.930
- Bibcode:
- 1978PhRvL..41..930M