Gamow-Teller strengths in 24Na using the 24Mg(t,3He) reaction at 115 AMeV

Howard, M. E.
Zegers, R. G. T.
Austin, Sam M.
Bazin, D.
Brown, B. A.
Cole, A. L.
Davids, B.
Famiano, M.
Fujita, Y.
Gade, A.
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Gamow-Teller transitions from 24Mg to 24Na were studied via the (t,3He) reaction at 115 AMeV using a secondary triton beam produced via fast fragmentation of 150 AMeV 16O ions. Compared to previous (t,3He) experiments at this energy that employed a primary alpha beam, the secondary beam intensity is improved by about a factor of five. Despite the large emittance of the secondary beam, an excitation-energy resolution of ~200 keV is achieved. A good correspondence is found between the extracted Gamow-Teller strength distribution and those available from other charge-exchange probes. Theoretical calculations using the newly developed USDA and USDB sd-shell model interactions reproduce the data well.
Comment: 10 pages, 3 figures
Nuclear Experiment