Abstract
The nuclear system was studied using the () transfer reaction at a laboratory energy of 57.7 MeV and small center of mass angles. The energy and angular correlations among the decay fragments were obtained by complete kinematical reconstruction. A broad structure in the missing mass spectrum above 2.5 MeV with a typical width of several MeV was identified as a mixture of and states. Analysis of interference patterns observed in the measured angular correlations disclosed the ground state of concealed in the smooth missing mass spectrum. The deduced values for the resonance energy and width are MeV and MeV. The estimated cross sections for population of the ground state and the doublet of excited states at are μb/sr and mb/sr, respectively.
13 More- Received 29 August 2005
DOI:https://doi.org/10.1103/PhysRevC.72.064612
©2005 American Physical Society