期刊
PHYSICS LETTERS B
卷 847, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.physletb.2023.138293
关键词
Matter density distribution; Magic number core; shell model
By fitting the small-angle differential cross sections of proton elastic scattering, the matter density distributions and root-mean-square matter radii for 90Zr and 92Zr were determined. The neutron rearrangement from 90Zr to 92Zr was found to be influenced by the surface-peaked term, indicating its important role in describing nucleon rearrangement.
Matter density distributions and root-mean-square matter radii for 90Zr and 92Zr were determined through fitting the small-angle differential cross sections of proton elastic scattering at 0.8 GeV with the Glauber model. With the obtained neutron densities, a neutron rearrangement beyond the expectation for the magic number 90Zr-core was found from 90Zr to 92Zr by adding two valence neutrons. By considering the surface-peaked term, the rearrangement was reproduced by the shell model calculations with the realistic Woods-Saxon potentials. It indicates that the surface-peaked term related to surface nucleon interactions plays an important role in describing the nucleon rearrangement, since the surface-peaked term would improve the description of the radial wave functions.
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