Phys. Rev. C
78,
047302
(2008)
[4 pages]
Gamow-Teller strengths in 24Na using the 24Mg(t,3He) reaction at 115A MeV
M. E. Howard1,2, R. G. T. Zegers2,3,4,*, Sam M. Austin2,3, D. Bazin3, B. A. Brown2,3,4, A. L. Cole2,3,†, B. Davids5, M. Famiano3,‡, Y. Fujita6, A. Gade2,3,4, D. Galaviz2,3,§, G. W. Hitt2,3,4, M. Matos3,**, S. D. Reitzner1,††, C. Samanta7,8,9, L. J. Schradin1, Y. Shimbara3,‡‡, E. E. Smith1,2, and C. Simenel3,10
1Department of Physics, The Ohio State University, Columbus, Ohio 43210, USA 2Joint Institute for Nuclear Astrophysics, Michigan State University, East Lansing, Michigan 48824, USA 3National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824-1321, USA 4Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA 5TRIUMF, Vancouver, British Columbia, V6T 2A3, Canada 6Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan 7Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkota 700064, India 8Physics Department, Virginia Commonwealth University, Richmond, Virginia 23284-2000, USA 9Physics Department, University of Richmond, Richmond, Virginia 23173, USA 10CEA, Irfu, SPhN Centre de Saclay, F-91191 Gif-sur-Yvette, France
Received 15 July 2008; published 20 October 2008
Gamow-Teller transitions from 24Mg to 24Na were studied via the (t,3He) reaction at 115A MeV using a secondary triton beam produced via fast fragmentation of 150A MeV 16O ions. Compared to previous (t,3He) experiments at this energy that employed a primary α 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.
© 2008 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevC.78.047302
DOI:
10.1103/PhysRevC.78.047302
PACS:
24.30.Gd, 21.60.Cs, 25.55.Kr, 27.30.+t
*zegers@nscl.msu.edu †Present address: Department of Physics, Kalamazoo College, Kalamazoo, MI 49006-3295, USA. ‡Present address: Physics Department, Western Michigan University, Kalamazoo, MI 49008-5252, USA. §Present address: Centro de Fisica Nuclear da Universidade de Lisboa, 1649-003, Lisboa, Portugal. **Present address: Oak Ridge National Laboratory, Oak Ridge, TN 37831-6354, USA. ††Present address: Physics Department, University of Guelph, Ontario N1G 2W1, Canada. ‡‡Present address: Graduate School of Science and Technology, Niigata University, Niigata 950-2181, Japan.
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