A proposed direct measurement of cross section at Gamow window for key reaction 19F(p,α) 16O in Asymptotic Giant Branch stars with a planned accelerator in CJPL

• DOI: 10.1007/s11433-016-5797-5
• Publication Date: 2016-03-18T15:41:09Z
• Authors: JianJun He; ShiWei Xu; ShaoBo Ma; Jun Hu; LiYong Zhang; ChangBo Fu; NingTao Zhang; Gang Lian; Jun Su; YunJu Li; ShengQuan Yan; YangPing Shen; SuQing Hou; BaoLu Jia; Tao Zhang; XiaoPeng Zhang; Bing Guo; Shigeru Kubono; WeiPing Liu
• Keywords: Nuclear astrophysics; Asymptotic giant branch

In 2014, the National Natural Science Foundation of China (NSFC) approved the Jinping Underground Nuclear Astrophysics laboratory (JUNA) project, which aims at direct cross-section measurements of four key stellar nuclear reactions right down to the Gamow windows. In order to solve the observed fluorine overabundances in Asymptotic Giant Branch (AGB) stars, measuring the key $^{19}$F($p$,$��$)$^{16}$O reaction at effective burning energies (i.e., at Gamow window) is established as one of the scientific research sub-projects. The present paper describes this sub-project in details, including motivation, status, experimental setup, yield and background estimation, aboveground test, as well as other relevant reactions.<br/>7 pages, 7 figures, 4 tables<br/>