REVELATION OF THICK NEUTRON SKINS IN NUCLEI

被引：399
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.
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页码：261 / 266
页数：6
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