Abstract
High spin states in the N=50 nucleus were populated and studied using the reaction P, 2p2nTc at a beam energy of 115 MeV. Gamma ray intensities and gamma-gamma coincidences were measured. Multipolarities of the transitions were extracted assuming stretched transitions. The positive and negative parity bands have been extended up to spins 39/ and 43/, respectively. The proposed level scheme above J=25/2 cannot be well understood on the basis of the spherical shell model calculations with valence protons occupying the (1,2,2,1) configuration space. The breaking of the N=50 neutron core appears to be a plausible mechanism for the observed high spin states.
- Received 2 September 1992
DOI:https://doi.org/10.1103/PhysRevC.47.87
©1993 American Physical Society