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Published February 29, 1996 | Submitted
Journal Article Open

Energy loss, electron screening and the astrophysical ^3He(d, p)^4He cross section

Abstract

We reanalyze the low-energy ^3He(d, p)^4He cross section measurements of Engstler et al. using recently measured energy loss data for proton and deuteron beams in a helium gas. Although the new ^3He(d, p)^4He astrophysical S-factors are significantly lower than those reported by Engstler et al., they clearly show the presence of electron screening effects. From the new astrophysical S-factors we find an electron screening energy in agreement with the adiabatic limit.

Additional Information

© 1996 Published by Elsevier B.V. Received 10 November 1995. Available online 15 February 2000. Editor: R.H. Siemssen. The work was supported in part by the National Science Foundation, Grant Nos. PHY94-12818 and PHY94-20470, and by the Deutsche Forschungsgemeinschaft. One of the authors (K.L.) would like to thank Professor Jens Lindhard for a valuable discussion.

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