Nuclear-matter radii of 7Be and 7Li and astrophysical S-factors for radiative alpha-capture reactions |
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| Affiliation: | 1. National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA;2. Department of Physics, Tokyo Metropolitan University, Setagaya-ku, Tokyo 158, Japan;3. RIKEN, Wako, Saitama 351-01, Japan;1. Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China;2. Lanzhou University, Lanzhou 730000, China;3. University of Chinese Academy of Sciences, Beijing 100049, China;1. Institute of Modern Physics, Shanxi Normal University, Linfen 041004, China;2. Department of Science, Taiyuan Institute of Technology, Taiyuan 030008, China;3. National Institutes for Quantum and Radiological Science and Technology, 4-9-1 Anagawa, Inage-ku, 263-8555, Chiba, Japan;1. Department of Physics, Anna University, Chennai, 600025, India;2. Department of Physics, Indian Institute of Science Education & Research (IISER), Mohali, Chandigarh, 160019, India |
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| Abstract: | The nuclear-matter radii of 7Be and 7Li measured in high-energy heavy-ion reactions have been calculated and applied to the estimate of astrophysical S-factors for the 3He(α,γ)7Be and 3G(α,γ)7Li reactions. The absolute S(O) values in the KeV b are constrained to be 0.36<S(0)<0.63 and 0.083<S(0)<015 for the 3He(α,γ)7Be and 3H(α,γ)7Li reactions, respectively. |
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