Abstract
Gamow-Teller (GT) strength distributions have been investigated in a high-resolution (He,) charge-exchange experiment on the double- ( ) decaying nuclei Te and Te. The experiment was carried out at the Research Center for Nuclear Physics, Osaka, with a 420-MeV incident He beam and the Grand Raiden magnetic spectrometer. A final-state energy resolution of 35 keV was achieved. The extracted GT strength distributions at low excitation energies in the final nuclei I and I are presented and discussed in the context of the decay matrix elements for the two tellurium nuclei. The additional neutron pair in Te seems to produce a moderate increase in the fragmentation of the low-energy GT distribution.
- Received 5 July 2012
DOI:https://doi.org/10.1103/PhysRevC.86.044603
©2012 American Physical Society