Abstract
Taking into account the final-state density of the leptons, a single resonance model for the scattering amplitude predicts a markedly asymmetric peak in the spectrum following decay into continuum states of . The observed peak is nearly symmetric and it is shown that this symmetry can arise from destructive interference from the subthreshold state (7.12 MeV) and/or a background from states of ∼17-MeV excitation in . It is shown that the width of the 7.12-MeV state must be an order of magnitude smaller than that of the state (9.58 MeV).
- Received 1 May 1971
DOI:https://doi.org/10.1103/PhysRevC.4.1591
©1971 American Physical Society