The emission order of hydrogen isotopes via correlation functions in 30 MeV/u Ar+Au reactions

The emission order of hydrogen isotopes via correlation functions in 30 MeV/u Ar+Au reactions
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30 MeV/u Ar Au 反应中氢同位素的发射顺序通过相关函数

DOI:
10.1016/j.physletb.2021.136856
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发表时间:
2021-12
期刊:
影响因子:
4.4
通讯作者:
Yan
Yan
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Wang Yijie;Guan Fenhai;Wu Qianghua;Diao Xinyue;Huang Yan;Lyu Liming;Qin Yuhao;Qin Zhi;Si Dawei;Bai Zhen;Duan Fangfang;Duan Limin;Gao Zhihao;Hu Qiang;Hu Rongjiang;Jin Genming;Jin Shuya;Ma Junbing;Ma Peng;Wang Jiansong;Wang Peng;Wang Yufeng;Wei Xianglun;Yan

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用强度干涉计时法测量了30 MeV/u的40Ar+197Au反应中形成的中速源氢同位素的粒子发射,通过非全同粒子对的关联函数证明了τp>τd>τt的动态发射顺序。假定源大小相似,从相同粒子对的关联函数中推断出相同的发射顺序,其中τp≈100fm/c是通过库宁-普拉特方程与pp关联函数的拟合来提取的。输运模型模拟表明,轻荷电粒子的动态发射顺序取决于核对称能量的刚性。
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 τ p> τ d> τ 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 τ p≈ 100 fm/c is extracted by the fit of Koonin-Pratt equation to pp 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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