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

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Authors
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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Abstract
Description
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
Keywords
Nuclear Experiment
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