학술논문
Multi-alpha Boson Gas state in Fusion Evaporation Reaction and Three-body Force
Document Type
Working Paper
Author
Wang, Taofeng; Li, Ziming; Wiringa, R. B.; Liu, Minliang; Wang, Jiansong; Yang, Yanyun; He, Qinghua; Sun, Zhiyu; Lin, Chengjian; Assié, M.; Ayyad, Y.; Beaumel, D.; Bai, Zhen; Duan, Fangfang; Gao, Zhihao; Guo, Song; Hu, Yue; Jiang, Wei; Kobayashi, F.; Lu, Chengui; Ma, Junbing; Ma, Peng; Napolitani, P.; Verde, G.; Wang, Jianguo; Wei, Xianglun; Xiao, Guoqing; Xu, Hushan; Yang, Biao; Yang, Runhe; Yao, Yongjin; Yu, Chaoyue; Zhang, Junwei; Zhang, Xing; Zhang, Yuhu; Zhou, Xiaohong
Source
Subject
Language
Abstract
The experimental evidence for the $\alpha$ Boson gas state in the $^{11}$C+$^{12}$C$\rightarrow$$^{23}$Mg$^{\ast}$ fusion evaporation reaction is presented. By measuring the $\alpha$ emission spectrum with multiplicity 2 and 3, we provide insight into the existence of a three-body force among $\alpha$ particles. The observed spectrum exhibited distinct tails corresponding to $\alpha$ particles emitted in pairs and triplets consistent well with the model-calculations of AV18-UX and chiral effective field theory of NV2-3-la*, indicating the formation of $\alpha$ clusters with three-body force in the Boson gas state.
Comment: 7 pages, 6 figures
Comment: 7 pages, 6 figures