Elsevier

Physics Letters B

Volume 202, Issue 2, 3 March 1988, Pages 179-184
Physics Letters B

Effects of electron screening on the 3He(d, p)4He low-energy cross sections

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Abstract

The reaction 3He(d, p)4He has been investigated for ECM = 5.9−41.6 keV with the use of D projectiles and 3He atomic gas target nuclides as well as with 3He projectiles and D2 molecular gas target nuclides. These studies show for the first time the effects of electron screening on low-energy fusion cross sections, i.e. a nearly exponential enhancement of the cross sections compared to the case of bare nuclei. The enhancement is about a factor 2 smaller for the case d(3He, p)4He due to the molecular nature of the D2 target nuclides.

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Supported in part by the Landesamt Nordrhein-Westfalen (IVB4-10600387) and the Deutsche Forschungsgemeinschaft (Ro429/15-2).

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