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| Computation of ~7Be solar neutrino flux | |
| 作者姓名： | 叶子飘 |
| 作者单位： | YE Zipiao1，2，3，SHENG Xiangdong 4，DAI Changjiang 3 1Department of Physics of Jingganshan Normal University，Jian 343000，Jiangxi，P.R. China 2Department of Physicas of Zhaoqing University，Zhaoqing 526061，Guangdong，P.R. China 3Key Laboratory of Cosmic Ray and Astrophysics，Institute of High Energy Physics，the Chinese Academy of Sciences，Beijing 100039，P.R. China 4Institute of High Energy Physics，the Chinese Academy of Sciences，Beijing 100039，P.R. China Received 1 April 2003; revised 18 September 2003 |
| 基金项目： | the National Natural Science Foundation of China (No. 10275073)，and also by the Key Laboratory of Cosmic Ray and Astrophysics，Institute of High Energy Physics，the Chinese Academy of Sciences. |
| 摘 要： | 1. Introduction J. N. Bahcall computed 7Be electron-capture consi-dering only the capture of continuum electrons and neglecting the plasma screening by the ionized gas of the star 1] . While I. Iben et al. thought that there is a finite probability that 7Be exists as an atom with one or two bound K-shell electrons 2]. They computed the capture rate of bound electron in 7Be3+ and 7Be4+ using Debye-Huckel approximation to estimate the screening effect of the ionized plasma on the rate of b… |
Computation of ~7Be solar neutrino flux |
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| YE Zipiao,SHENG Xiangdong,DAI Changjiang.Computation of ~7Be solar neutrino flux[J].Journal of Chongqing University,2003,2(2). | |
| Authors: | YE Zipiao SHENG Xiangdong DAI Changjiang |
| Institution: | 1. Department of Physics of Jingganshan Normal University, Ji'an 343000, Jiangxi, P.R.China;Department of Physicas of Zhaoqing University, Zhaoqing 526061, Guangdong, P.R.China;Key Laboratory of Cosmic Ray and Astrophysics, Institute of High Energy Physics,t 2. Institute of High Energy Physics, the Chinese Academy of Sciences, Beijing 100039, P.R.China 3. Key Laboratory of Cosmic Ray and Astrophysics, Institute of High Energy Physics,the Chinese Academy of Sciences, Beijing 100039, P.R.China |
| Abstract: | Within the target range from 0 to 0.1217 times the solar radius, the probability of 7Be existing as an ion with one or two bound electrons is calculated, which is turned out to be about 4.69 %, and about 95.31 % 7Be nucleus is completely ionized. After considering the influence of that portion of incompletely ionized 7Be, the renewly calculative result shows that the solar neutrino flux of 7Be will decrease from 45 000 m-2s-1 to 43 000 m-2s-1, and the predicted value of the 8B solar neutrino flux will increase from 515 m-2s-1 to 535 m-2s-1. |
| Keywords: | electron-capture rate ~7Be solar neutrino standard solar model |
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