Abstract
Proton pair correlations relevant for the neutrinoless double- decay of Ge have been probed via the Ge(He,) reactions at 16 MeV. No evidence for pairing vibrations in either nucleus is observed at sensitivity limits of 6 and 19 of the ground-state strength in Se and Se, respectively. These results are relevant for the understanding of matrix elements for neutrinoless double- decay. The lack of pairing vibrations is consistent with a simple BCS structure for the ground states of Ge and Se, assumed in quasiparticle random phase approximation (QRPA) models of the process.
- Received 25 April 2013
DOI:https://doi.org/10.1103/PhysRevC.87.051305
©2013 American Physical Society