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Phys. Rev. C 70, 064601 (2004) [5 pages]

Experimental and theoretical study of the 2H(d⃗,γ)4He reaction below Ec.m.=60 keV

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K. Sabourov, M. W. Ahmed, S. R. Canon, B. Crowley, K. Joshi, J. H. Kelley, S. O. Nelson, B. A. Perdue, E. C. Schreiber, A. Sabourov, A. Tonchev, H. R. Weller, and E. A. Wulf
Department of Physics, Duke University, Durham, North Carolina 27708, USA and Triangle Universities Nuclear Laboratory, Box 90308, Durham, North Carolina 27708, USA

R. M. Prior and M. C. Spraker
Department of Physics, North Georgia College and State University, Dahlonega, Georgia, 30597, USA

H. M. Hofmann and M. Trini
Physics Department, University of Erlangen-Nürnberg, Erlangen, Germany

Received 14 May 2004; published 1 December 2004

New measurements of the analyzing powers Ay and T20 have been obtained for the 2H(d,γ)4He reaction at a laboratory beam energy of 115 keV. A transition matrix element analysis results in a unique solution which indicates that the reaction proceeds by 55% E2, 29% E1, and 16% M2 radiation. These results are shown to be in good agreement with the results of a new refined resonating group model calculation. The impact of these results on the extrapolated value of the astrophysical S factor for this reaction is discussed.

© 2004 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevC.70.064601
DOI:
10.1103/PhysRevC.70.064601
PACS:
25.40.Lw, 24.70.+s, 26.35.+c, 24.10.Eq
 
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