Abstract
The differential elastic scattering cross section has been measured for the scattering of from and the scattering of from tritium for bombarding energies of 5 to 18 and 4 to 18 MeV, respectively. Data were also obtained for the reactions , , , and . Levels are seen at 4.65, 6.64, 7.47, and 9.7 MeV in , and at 4.57, 6.73, 7.21, and 9.3 MeV in . A phase-shift analysis suggests assignments of and for the two lower levels in , confirms the assignment of the 7.47 level, and suggests a assignment for the new level at 9.7 MeV. Similarly in , the assignments of and for the lower two levels are confirmed, and an assignment of is suggested for the new level at 9.3 MeV. The reduced widths for and nucleon emission were determined by fitting the phase shifts near each level with a single- and/or double-level formula from the -matrix formalism of Lane and Thomas. The results of the analysis are discussed and compared with predictions of recent nuclear-model calculations.
- Received 29 May 1967
DOI:https://doi.org/10.1103/PhysRev.163.964
©1967 American Physical Society