Neutron skin thickness of 90Zr and symmetry energy constrained by charge exchange spindipole excitations
Neutron skin thickness of 90Zr and symmetry energy constrained by charge exchange spindipole excitations
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DOI：
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发表时间：
2023
影响因子：
3.6
通讯作者：
Fengshou Zhang
中科院分区：
文献类型：
--
作者：
Shihui Cheng;Jing Wen;Ligang Cao;Fengshou Zhang
The charge exchange spin-dipole (SD) excitations of Zr are studied using the Skyrme Hartee-Fock.plus proton-neutron random phase approximation with SAMi-J interactions. The experimental value of the model-independent.sum rule obtained from the SD strength distributions of Zr(p, n) Nb and Zr(n, p) Y is used to deduce.the neutron skin thickness. The neutron skin thickness of Zr is extracted as fm, which is.similar to the results of other studies. Based on the correlation analysis of the neutron skin thickness and the.nuclear symmetry energy J as well as its slope parameter L, a constraint from the extracted leads to the limitation.of J to MeV and L to MeV.
