The Emission Order of Hydrogen Isotopes via Correlation Functions in 30 MeV/u Ar+Au Reactions

分类： 物理学 >> 核物理学 提交时间： 2023-11-25

Yijie Wang Fenhai Guan Qianghua Wu Xinyue Diao Yan Huang Liming Lyu Yuhao Qin Zhi Qin Dawei Si Zhen Bai Fangfang Duan Limin Duan Zhihao Gao Qiang Hu Rongjiang Hu Genming Jin Shuya Jin Junbing Ma Peng Ma Jiansong Wang

摘要： The intensity interferometry is applied as a chronometer of the particle emission of hydrogen isotopes from the intermediate velocity source formed in $^{40}$Ar+$^{197}$Au reactions at 30 MeV/u. The dynamic emission order of $ tau_{ rm p}> tau_{ rm d}> tau_{ rm t}$ is evidenced via the correlation functions of nonidentical particle pairs. Assuming the similar source size, the same emission order is inferred from the correlation functions of identical particle pairs, where $ tau_{ rm p} approx 100 { rm ~fm/c}$ is extracted by the fit of Koonin-Pratt equation to p-p correlation function. Transport model simulations demonstrate that the dynamic emission order of light charged particles depends on the stiffness of the nuclear symmetry energy.

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