Effects of electron screening on the 3He(d,p)4He low-energy cross sections |
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| Institution: | 1. Department of Nuclear Physics, University of South China, Hengyang 421001, PR China;2. Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, PR China;3. College of physics and Electronic Engineering, HengYang Normal University, Hengyang 421008, PR China;1. Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Bautzner Landstr. 400, Dresden 01328, Germany;2. Technische Universität Dresden (TU Dresden), Dresden 01069, Germany;3. Hashemite University, Physics Department, Zarqa 13133, Jordan;4. Wigner Research Centre for Physics of the Hungarian Academy of Sciences (MTA Wigner), Budapest H-1525, Hungary;5. MTA-ELTE Geological, Geophysical and Space Science Research Group, Budapest H-1117, Hungary;6. VKTA – Strahlenschutz, Analytik & Entsorgung Rossendorf e.V., Dresden 01328, Germany |
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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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