Multi-alpha Boson Gas state in Fusion Evaporation Reaction and Three-body Force
| Autor: | 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 |
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| Rok vydání: | 2023 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| Popis: | 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 |
| Databáze: | arXiv |
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