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Neutron Skin Thickness of 48 Ca, 132 Sn, and 208 Pb with KIDS Density Functional

2022; Korean Physical Society; Volume: 72; Issue: 5 Linguagem: Inglês

10.3938/npsm.72.371

2289-0041

Chang Ho Hyun,

Nuclear reactor physics and engineering

Neutron skin thickness (R np ) of the atomic nuclei 48 Ca, 132 Sn and 208 Pb are considered in the KIDS (Korea:IBS-Daegu-Sungkyunkwan) density functional formalism.Model parameters most relevant to R np are constrained from standard nuclear data and neutron star properties determined from modern observations.Mean values of R np are obtained as 0.161, 0.220 and 0.160 fm for 48 Ca, 132 Sn and 208 Pb, respectively, and the corresponding standard deviations are 0.011, 0.020 and 0.021 fm.Correlations between R np of the three nuclei are considered, and we find that R np 's are correlated very strongly.We obtain correlation coefficient 0.978 between R np of 48 Ca and 208 Pb, and 0.996 between R np of 132 Sn and 208 Pb.