Abstract
The photon spectrum of the pion capture reaction was measured with a resolution of 0.9 MeV full width at half maximum. A single strong transition is observed with -ray energy 115.70±0.17 MeV, corresponding to a state in at 2.15±0.17-MeV excitation. Comparisons with previous experiments and theoretical calculations identify this as the second state in mass-14 nuclei. The single strong transition has a measured branching ratio (11.1±3.0)×, which equals one-fifth of the shell-model prediction. The total radiative capture branching ratio is 0.68±0.16%, which is a factor of 2 to 3 smaller than for other 1--shell nuclei.
NUCLEAR REACTIONS ( MeV), MeV; measured photon spectra with pair spectrometer, compared with shell-model calculations.
- Received 17 February 1983
DOI:https://doi.org/10.1103/PhysRevC.28.761
©1983 American Physical Society