Abstract
The Al reaction was studied at MeV. An energy resolution of 35 keV was achieved. Gamow-Teller strengths to discrete levels in were extracted by using a recently developed empirical relationship for the proportionality between Gamow-Teller strengths and differential cross sections at zero momentum transfer. Except for small discrepancies for a few weak excitations, good agreement with previous () data and nuclear-structure calculations using the USDA/B interactions in the shell-model space was found. The excitation energy of several levels in of significance for determination of the Al thermonuclear reaction rate were measured. Results are consistent with two of the three previous (,) measurements, performed at much lower beam energies. However, a new state at MeV was found and is the third state above the proton separation energy.
- Received 22 March 2008
DOI:https://doi.org/10.1103/PhysRevC.78.014314
©2008 American Physical Society