Abstract
The double-differential cross sections for the Cd and Sn reactions were measured at 300 MeV for studying the nuclear matrix element of the Cd decay. A multipole decomposition technique was applied to the spectra to extract the Gamow-Teller (GT) component. The integrated GT strengths up to an excitation energy of 30 MeV in the intermediate nucleus In are and in the and spectra, respectively, including the component from the isovector spin monopole (IVSM). The spectra are compared with those obtained from a theoretical calculation with a quasiparticle random phase approximation, where the contribution from the IVSM component as well as the interference effect between the GT and IVSM components are fully taken into account.
- Received 15 April 2012
DOI:https://doi.org/10.1103/PhysRevC.85.061301
©2012 American Physical Society