Measurement of the relative differential cross sections of the reaction in the neutron energy range from 6 MeV to 52 MeV

Haoyu Jiang; Wei Jiang; Zengqi Cui; Guohui Zhang; Ruirui Fan; Kang Sun; Huaiyong Bai; Yiwei Hu; Jie Liu; Han Yi; Changjun Ning; Liang Zhou; Zhijia Sun; Jingyu Tang; Qi An; Jie Bao; Yu Bao; Ping Cao; Haolei Chen; Qiping Chen; Yonghao Chen; Yukai Chen; Zhen Chen; Changqing Feng; Keqing Gao; Minhao Gu; Changcai Han; Zijie Han; Guozhu He; Yongcheng He; Yang Hong; Hanxiong Huang; Weiling Huang; Xiru Huang; Xiaolu Ji; Xuyang Ji; Zhijie Jiang; Hantao Jing; Ling Kang; Mingtao Kang; Bo Li; Chao Li; Jiawen Li; Lun Li; Qiang Li; Xiao Li; Yang Li; Rong Liu; Shubin Liu; Xingyan Liu; Guangyuan Luan; Qili Mu; Binbin Qi; Jie Ren; Zhizhou Ren; Xichao Ruan; Zhaohui Song; Yingpeng Song; Hong Sun; Xiaoyang Sun; Zhixin Tan; Hongqing Tang; Xinyi Tang; Binbin Tian; Lijiao Wang; Pengcheng Wang; Qi Wang; Taofeng Wang; Zhaohui Wang; Jie Wen; Zhongwei Wen; Qingbiao Wu; Xiaoguang Wu; Xuan Wu; Likun Xie; Yiwei Yang; Li Yu; Tao Yu; Yongji Yu; Linhao Zhang; Qiwei Zhang; Xianpeng Zhang; Yuliang Zhang; Zhiyong Zhang; Yubin Zhao; Luping Zhou; Zuying Zhou; Danyang Zhu; Kejun Zhu; Peng Zhu

doi:10.1140/epja/s10050-020-00313-7

2024 Impact factor 2.8

Hadrons and Nuclei

Eur. Phys. J. A (2021) 57: 6
https://doi.org/10.1140/epja/s10050-020-00313-7

Regular Article – Experimental Physics

Measurement of the relative differential cross sections of the $^{1} H (n, e l)$ $^{1} H(n,el)$ reaction in the neutron energy range from 6 MeV to 52 MeV

Haoyu Jiang¹, Wei Jiang²^,3, Zengqi Cui¹, Guohui Zhang¹^d, Ruirui Fan²^,3^,4, Kang Sun²^,3^,5, Huaiyong Bai¹, Yiwei Hu¹, Jie Liu¹, Han Yi²^,3, Changjun Ning²^,3, Liang Zhou²^,3, Zhijia Sun²^,3^,4, Jingyu Tang²^,3, Qi An⁴^,6, Jie Bao⁷, Yu Bao²^,3, Ping Cao⁴^,6, Haolei Chen⁴^,6, Qiping Chen⁸, Yonghao Chen²^,3, Yukai Chen²^,3, Zhen Chen⁴^,6, Changqing Feng⁴^,6, Keqing Gao²^,3, Minhao Gu²^,4, Changcai Han⁹, Zijie Han⁸, Guozhu He⁷, Yongcheng He²^,3, Yang Hong²^,3^,5, Hanxiong Huang⁷, Weiling Huang²^,3, Xiru Huang⁴^,6, Xiaolu Ji²^,4, Xuyang Ji⁴^,10, Zhijie Jiang⁴^,6, Hantao Jing²^,3, Ling Kang²^,3, Mingtao Kang²^,3, Bo Li²^,3, Chao Li⁴^,6, Jiawen Li⁴^,10, Lun Li²^,3, Qiang Li²^,3, Xiao Li²^,3, Yang Li²^,3, Rong Liu⁸, Shubin Liu⁴^,6, Xingyan Liu⁸, Guangyuan Luan⁷, Qili Mu²^,3, Binbin Qi⁴^,6, Jie Ren⁷, Zhizhou Ren⁸, Xichao Ruan⁷, Zhaohui Song⁹, Yingpeng Song²^,3, Hong Sun²^,3, Xiaoyang Sun²^,3^,5, Zhixin Tan²^,3, Hongqing Tang⁷, Xinyi Tang⁴^,6, Binbin Tian²^,3, Lijiao Wang²^,3^,5, Pengcheng Wang²^,3, Qi Wang⁷, Taofeng Wang¹¹, Zhaohui Wang⁷, Jie Wen⁸, Zhongwei Wen⁸, Qingbiao Wu²^,3, Xiaoguang Wu⁷, Xuan Wu²^,3, Likun Xie⁴^,10, Yiwei Yang⁸, Li Yu²^,3, Tao Yu⁴^,6, Yongji Yu²^,3, Linhao Zhang²^,3^,5, Qiwei Zhang⁷, Xianpeng Zhang⁹, Yuliang Zhang²^,3, Zhiyong Zhang⁴^,6, Yubin Zhao²^,3, Luping Zhou²^,3^,5, Zuying Zhou⁷, Danyang Zhu⁴^,6, Kejun Zhu²^,4^,5, Peng Zhu²^,3 and The CSNS Back-n Collaboration

¹ State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, 100871, Beijing, China
² Institute of High Energy Physics, Chinese Academy of Sciences (CAS), 100049, Beijing, China
³ Spallation Neutron Source Science Center, 523803, Dongguan, China
⁴ State Key Laboratory of Particle Detection and Electronics, Beijing, China
⁵ University of Chinese Academy of Sciences, 100049, Beijing, China
⁶ Department of Modern Physics, University of Science and Technology of China, 230026, Hefei, China
⁷ Key Laboratory of Nuclear Data, China Institute of Atomic Energy, 102413, Beijing, China
⁸ Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, 621900, Mianyang, China
⁹ Northwest Institute of Nuclear Technology, 710024, Xi’an, China
¹⁰ Department of Engineering and Applied Physics, University of Science and Technology of China, 230026, Hefei, China
¹¹ School of Physics, Beihang University, 100083, Beijing, China

^d guohuizhang@pku.edu.cn

Received: 29 July 2020
Accepted: 22 November 2020
Published online: 3 January 2021

Abstract

The relative differential cross sections of the $^{1} H (n, e l)$ $^{1}\hbox {H}(n, \,el)$ reaction have been measured at the China Spallation Neutron Source (CSNS) Back-n white neutron source. A low-density polyethylene sample and a graphite foil were prepared for the foreground and background measurements, respectively. The charged particles were detected using the $△ E - E$ ${\vartriangle }E-E$ telescope array of the Light-charged Particle Detector Array (LPDA) system. With 10 $△ E - E$ ${\vartriangle }E-E$ telescopes, the relative differential cross sections of the $^{1} H (n, e l)$ $^{1}\hbox {H}(n, \,el)$ reaction were obtained from 70 $^{\circ}$ $^{\circ }$ to 160 $^{\circ}$ $^{\circ }$ in the center-of-mass system in the neutron energy ( $E_{n}$ $E_{\mathrm{n}}$ ) range from 6.14 to 52.48 MeV (23 energy points). The present work was the first experiment using the $△ E - E$ ${\vartriangle }E-E$ telescope array of the LPDA system at CSNS. The present results are in good agreement with previous measurements, evaluations and theoretical calculations. Furthermore, this work is the first measurement in the 6.52 MeV $\leq E_{n} \leq$ $\le E_{\mathrm{n}} \le$ 9.09 MeV, 10.57 MeV $\leq E_{n} \leq$ $\le E_{\mathrm{n}} \le$ 12.43 MeV, and 18.05 MeV $\leq$ $\le$ $E_{n} \leq$ $E_{\mathrm{n}} \le$ 20.05 MeV regions.