NUCLEAR PHYSICS |
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The Main Path to C, N, O Elements in Big Bang Nucleosynthesis |
HOU Su-Qing1,2, WU Kai-Su1, CHEN Yong-Shou2,3, SHU Neng-Chuan2, LI Zhi-Hong2 |
1Department of Mathematics and Information Science, Beijing University of Chemical Technology, Beijing 100029 2China Institute of Atomic Energy, PO Box 275, Beijing 102413 3Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000 |
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Cite this article: |
HOU Su-Qing, WU Kai-Su, CHEN Yong-Shou et al 2010 Chin. Phys. Lett. 27 082601 |
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Abstract The production of C, N, O elements in a standard big bang nucleosynthesis scenario is investigated. Using the up-to-date data of nuclear reactions in BBN, in particular the 8Li (n,γ) 9Li which has been measured in China Institute of Atomic Energy, a full nucleosynthesis network calculation of BBN is carried out. Our calculation results show that the abundance of 12C is increased for an order of magnitude after addition of the reaction chain 8Li(n,γ) 9Li(α,n) 12B(β) 12C, which was neglected in previous studies. We find that this sequence provides the main channel to convert the light elements into C, N, O in standard BBN.
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Keywords:
26.35.+c
25.40.Lw
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Received: 11 December 2009
Published: 28 July 2010
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