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Reanalysis of the astrophysical S(E) factor and screening potential for B-11(p, alpha(0))Be-8 reaction at sub-Coulomb energies
LU Yongkai 1,ZHANG Qian 2,GUAN Xingcai 2,WANG Qiang 2,ZHAO Jiangtao 2,WANG Tieshan 2 *
1.School of Nuclear Science and Technology, Lanzhou University, Tianshui South Road 222, Lanzhou, Gansu Province 730000, China;School of Nuclear Science and Technology, Lanzhou University, Tianshui South Road 222, Lanzhou, Gansu Province 730000, China;School of Nuclear Science and Technology, Lanzhou University, Tianshui South Road 222, Lanzhou, Gansu Province 730000, China;School of Nuclear Science and Technology, Lanzhou University, Tianshui South Road 222, Lanzhou, Gansu Province 730000, China;School of Nuclear Science and Technology, Lanzhou University, Tianshui South Road 222, Lanzhou, Gansu Province 730000, China;School of Nuclear Science and Technology, Lanzhou University, Tianshui South Road 222, Lanzhou, Gansu Province 730000, China
2.School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000
*Correspondence author
#Submitted by
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Funding: National Nature Science Foundation of China(No.11275085, 11305080, 10675056)
Opened online:18 February 2018
Accepted by: none
Citation: LU Yongkai,ZHANG Qian,GUAN Xingcai.Reanalysis of the astrophysical S(E) factor and screening potential for B-11(p, alpha(0))Be-8 reaction at sub-Coulomb energies[OL]. [18 February 2018] http://en.paper.edu.cn/en_releasepaper/content/4743545
 
 
A new astrophysical S-factor of B-11(p,alpha(0))Be-8 reaction at sub-Coulomb energies was extracted through reanalyzing the experimental data obtained with Trojan Horse Method (THM) reported by Spitaleri et al. and Lamia et al. Based on this S-factor, three sets of direct experimental data in sub-Coulomb energy region were refitted to obtain the screening energy (Us) provided by surrounding charges. The result showed that Us=360±130 eV, which was more consistent with the prediction value (340 eV) from adiabatic limit theory compared with the result (472±160 eV) reported by Lamia et al.
Keywords:astrophysical S-factor; B-11(p,alpha(0))Be-8 reaction; screening potential; reanalysis
 
 
 

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