Strong Two-Step Contributions in Direct Allowed Two-Nucleon Transfers
Abstract
The h92g92 multiplet in 210Bi was populated by 208Pb(α, d) in experiments at 33 and 48 MeV. The strong favoring of the five unnatural-parity states of the multiplet disagrees with one-step transfer distorted-wave Born-approximation predictions. Coupled-reaction-channels calculations explain this effect as interference of direct np transfer and successive stripping amplitudes of comparable magnitude. This holds for weak (low-spin) and strong (high-spin) members of the multiplet.
- Publication:
-
Physical Review Letters
- Pub Date:
- August 1978
- DOI:
- 10.1103/PhysRevLett.41.639
- Bibcode:
- 1978PhRvL..41..639D