Abstract
Angular distributions have been measured for the Li, ) reaction on targets of , ,14C, , and at bombarding energies of 35, 25, and 14 MeV/nucleon. The ratios of observed cross sections for states in and suggest that the reaction mechanism is predominantly one-step at 35 and 25 MeV/nucleon with an increasing contribution from sequential transfer at lower energies. Measured forward-angle cross sections for Gamow-Teller transitions are found to be accurately proportional to the corresponding B(GT) values from decay or from (p,n) data. This calibration will allow the measurement of spin-transfer strength with the Li, ) reaction at intermediate energies. One-step distorted-wave Born approximation calculations, which used Yukawa central and × Yukawa tensor potentials, are consistent with the data at 35 and 25 MeV/nucleon except for °, and give a central force strength, , in reasonable agreement with that obtained in (p,n) studies at similar energies per nucleon.
- Received 23 December 1986
DOI:https://doi.org/10.1103/PhysRevC.35.1734
©1987 American Physical Society