The Main Path to C, N, O Elements in Big Bang Nucleosynthesis  

作　　者：侯素青 吴开谡 陈永寿 舒能川 李志宏 

机构地区：[1]Department of Mathematics and Information Science, Beijing University of Chemical Technology, Beijing 100029 [2]China Institute of Atomic Energy, PO Box 275, Beijing 102413 [3]Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000

出　　处：《Chinese Physics Letters》2010年第8期55-57,共3页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant Nos 10447141 and 10775182, the National Basic Research Program of China （2007CB815000）, and the Youth Foundation of Beijing University of Chemical Technology under Grant No QN0622.

摘　　要：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 12 C 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.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 12 C 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.

分 类 号：O613.71[理学—无机化学] P159[理学—化学]