RESTORATION OF ISOSPIN SYMMETRY IN HIGHLY EXCITED COMPOUND NUCLEI

被引：44

作者：

BEHR, JA ^{[1
]}

SNOVER, KA ^{[1
]}

GOSSETT, CA ^{[1
]}

KICINSKAHABIOR, M ^{[1
]}

GUNDLACH, JH ^{[1
]}

DREBI, ZM ^{[1
]}

KAPLAN, MS ^{[1
]}

WELLS, DP ^{[1
]}

机构：

[1] UNIV WASHINGTON,NUCL PHYS LAB,SEATTLE,WA 98195

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 70卷 / 21期

关键词：

D O I：

10.1103/PhysRevLett.70.3201

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have deduced compound nuclear isospin mixing in Si-28 and Al-26* at excitation energies between 33 and 65 MeV. The gamma-ray yield from the decay of giant dipole resonances built on excited states is found to be suppressed, implying that isospin mixing is small. By comparison with data from the literature at lower excitation energy, we conclude that isospin is a better symmetry in these compound nuclei at high excitation energy.

引用

页码：3201 / 3204

页数：4

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