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Phys. Rev. C 71, 041301(R) (2005) [5 pages]

Doorway states as a principal decay pathway in 12C(12C,γ) radiative capture

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D. G. Jenkins, B. R. Fulton, and J. Pearson*
Department of Physics, University of York, Heslington, York YO10 5DD, United Kingdom

C. J. Lister, M. P. Carpenter, S. J. Freeman†, N. J. Hammond, R. V. F. Janssens, T. L. Khoo, T. Lauritsen, and A. H. Wuosmaa
Physics Division, Argonne National Laboratory, Argonne, Illinois 60439

P. Fallon, A. Görgen, A. O. Macchiavelli, and M. McMahan
Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720

M. Freer
School of Physics and Astronomy, University of Birmingham, Birmingham B15 2TT, United Kingdom

F. Haas
Institut de Recherches Subatomiques, CNRS-IN2P3/ULP, F67037 Strasbourg Cedex 2, France

Received 9 June 2004; published 8 April 2005

The heavy-ion radiative capture reaction, 12C(12C,γ), has been investigated at beam energies around 16 MeV. Two different experiments were performed. Capture cross sections were obtained by measuring fused 24Mg residues and were found to significantly exceed values reported earlier. Subsequently, the decay pathways associated with radiative capture were delineated using the Gammasphere array. A substantial fraction of the decay was found to proceed through a few high-lying doorway states near 10 MeV in excitation.

© 2005 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevC.71.041301
DOI:
10.1103/PhysRevC.71.041301
PACS:
21.60.Gx, 25.70.Jj, 29.30.Kv, 27.30.+t

*Present address: TRIUMF, 4004 Wesbrook Mall, Vancouver V6T 2A3, Canada.

†Permanent address: Department of Physics, University of Man-chester, Manchester M13 9PL, UK.

 
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