Abstract
The neutron differential elastic scattering cross section of has been measured at and in the vicinity of the 1-Mev resonance as well as at higher nonresonant energies. A phase-shift analysis of the results gives the , , , and phase shifts up to 2.4-Mev neutron bombarding energy. The bound single-particle states of , as well as the - and -wave phase shifts, determine the parameters of a phenomenological potential well which describes the average interaction of the neutron with the core. This potential has a depth around 40-45 Mev, which varies slightly for different single-particle configurations, and has a diffuse boundary with a Thomas-type spin-orbit energy term. It is consistent with the potentials which in other work are found to fit data of much higher mass.
- Received 10 September 1957
DOI:https://doi.org/10.1103/PhysRev.109.89
©1958 American Physical Society