Abstract
The population of the 6.05-MeV state in in the + reaction was measured for MeV by detecting the → g.s. pair transition. recoil pair and coincidence spectra were obtained at the resonance at 46.3 MeV to obtain the relative population of the 6.13-MeV and 6.05-MeV states. The total pair cross section reveals resonances at MeV which are correlated with resonances seen in other channels. The ratio of resonant cross sections varies between 0.014 and 0.080. Reduced widths extracted for the excitation channel are of the same order as those of the and 6.92-MeV final state channels. This indicates that the weak cross section is caused by the energy-angular-momentum mismatch rather than by the structure of the resonance wavefunction.
NUCLEAR REACTIONS (, (, 6.05 MeV)) , MeV, detect pairs; measure , deduce resonances, reduced widths.
- Received 22 December 1977
DOI:https://doi.org/10.1103/PhysRevC.17.2097
©1978 American Physical Society