Abstract
The mass excess of and the excitation energy of its first excited state have been measured using the reaction. The results confirm one of three earlier measurements which gave the mass excess as 15.7025±0.0018 MeV, and an average of all relevant measurements for the energy of the first excited state yields 3.344±0.008 MeV. These values differ significantly from those previously accepted, and since they provided energy calibrations for measurements on a number of light nuclei, appropriately revised results are quoted for the mass excess of , as well as for the energies of the second excited state in and states in , , and .
- Received 10 June 1968
DOI:https://doi.org/10.1103/PhysRev.174.1247
©1968 American Physical Society