Abstract
Thick targets of (91.7%) were bombarded with ions accelerated in the Oak Ridge tandem Van de Graaff, and the cross section for the neutron-transfer reaction (, ) was measured from 12.5 to 20.5 MeV. The cross section measured in this energy range is due predominantly to transfer that proceed to the ground state, since the threshold for the reaction to populate the 6.09-MeV first excited state is 17.6 MeV. The measured excitation function was then compared with cross sections calculated from the recent distorted-wave Born-approximation (DWBA) treatment of Schmittroth, Tobocman, and Golestaneh. It was possible to find an optical potential for which the DWBA matched the observed excitation function above 14-MeV (lab) incident energy. From this fit the spectroscopic factor for the ground state was determined. The excitation function for the compound-nucleus reaction was also measured for incident energies from 13.5 to 20.5 MeV.
- Received 2 December 1970
DOI:https://doi.org/10.1103/PhysRevC.3.1444
©1971 American Physical Society