2026-10-13T23:09:53Z https://www.scidb.cn/oai

10.57760/sciencedb.j00186.00509 2024-04-08T19:54:53Z

2024-04-08 A possible probe to neutron-skin thickness by fragment parallel momentum distribution in projectile fragmentation reactions doi:10.57760/sciencedb.j00186.00509 en In the framework of the Lanzhou Quantum Molecular Dynamics (LQMD) model, a possible probe to the neutron-skin thickness (δnp) of neutron-rich 48Ca is studied in 140A MeV 48Ca + 9Be projectile fragmentation reaction based on parallel momentum distribution (p||) of residual fragments.The Fermi-type density distribution is employed to initiate the neutron density distributions in the LQMD simulation. A combined Gaussian function with different width parameters for the left side (ΓL) and the right side (ΓR) in distribution are used to describe the p|| of residual fragments. The value of ΓL, taking neutron-rich sulfur isotopes as examples, shows a sensitive correlation to δnp of 48Ca, which is suggested to be a probe to determine the neutron-skin thickness of the projectile nucleus. neutron-skin thickness; projectile fragmentation; parallel momentum distribution; neutron-rich nucleus; quantum molecular dynamics model Yi-Jie Duan Chun-Wang Ma Ya-Fei Guo Chun-Yuan Qiao Yu-Ting Wang Jie Pu Kai-Xuan Cheng Hui-Ling Wei PUBLIC https://creativecommons.org/licenses/by/4.0/ dataset http://www.doi.org/10.1007/s41365-024-01455-9 Science Data Bank