Determination of neutron-skin thickness using configurational information entropy

分类： 物理学 >> 核物理学 提交时间： 2022-01-21 合作期刊: 《Nuclear Science and Techniques》

Ma, Chun-Wang Liu, Yi-Pu Wei, Hui-Ling Pu, Jie Cheng, Kai-Xuan Wang, Yu-Ting

摘要： Configurational information entropy (CIE) theory was employed to determine the neutron skin thickness of neutron-rich calcium isotopes. The nuclear density distributions and fragment cross-sections in 350 MeV/u 40-60Ca + 9Be projectile fragmentation reactions were calculated using a modified statistical abrasion-ablation model. CIE quantities were determined from the nuclear density, isotopic, mass, and charge distributions. The linear correlations between the CIE determined using the isotopic, mass, and charge distributions and the neutron skin thickness of the projectile nucleus show that CIE provides new methods to extract the neutron skin thickness of neutron-rich nuclei.

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