REVELATION OF THICK NEUTRON SKINS IN NUCLEI

被引：400

作者：

TANIHATA, I

HIRATA, D

KOBAYASHI, T

SHIMOURA, S

SUGIMOTO, K

TOKI, H

机构：

[1] RIKKYO UNIV,FAC SCI,TOKYO 171,JAPAN

[2] OSAKA UNIV,FAC SCI,TOYONAKA,OSAKA 560,JAPAN

[3] TOKYO METROPOLITAN UNIV,FAC SCI,HACHIOJI 192,JAPAN

来源：

PHYSICS LETTERS B | 1992年 / 289卷 / 3-4期

关键词：

D O I：

10.1016/0370-2693(92)91216-V

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Thick neutron skins (approximately 0.9 fm) have been verified for the first time in He-6 and He-8 nuclei from a combined analysis of the interaction and the fragmentation cross sections of He-4, He-6, He-8 incident reactions at 800A MeV. A relativistic mean field (RMF) model was applied to He-6 and He-8 nuclei and shown to reproduce the neutron skin thicknesses very well. It is also shown that the RMF model predicts a gross linear dependence of the neutron skin thickness on the difference between the proton and the neutron Fermi energy in a wide range of nuclei. Possible observations of thick neutron skins in other nuclei, in particular in Na isotopes, are also discussed.

引用

页码：261 / 266

页数：6

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