Isospin decomposition of nuclear multipole matrix elements from. gamma. decay rates of mirror transitions: Test of values obtained with hadronic probes
Isospin decomposition of nuclear multipole matrix elements from. gamma. decay rates of mirror transitions: Test of values obtained with hadronic probes
复制标题
核多极矩阵元素的同位旋分解而来。
DOI：
10.1103/physrevlett.42.425
复制
发表时间：
1979
影响因子：
8.6
通讯作者：
V. A. Madsen
中科院分区：
文献类型：
--
作者：
A. Bernstein;V. R. Brown;V. A. Madsen
The electromagnetic decay rates of mirror states are used to decompose the multipole electromagnetic matrix elements into isoscalar and isovector or equivalently proton and neutron matrix elements. This method is sensitive to the neutron matrix element because it is measured directly, and it is accurate since it depends only on electromagnetic interactions; it therefore can be used to test methods using inelastic hadron scattering. There is agreement with the results for ($\ensuremath{\alpha}$,${\ensuremath{\alpha}}^{\ensuremath{'}}$) on $^{26}\mathrm{Mg}$ and $^{42}\mathrm{Ca}$ but disagreement with the recent $^{18}\mathrm{O}$($\ensuremath{\pi}$,${\ensuremath{\pi}}^{\ensuremath{'}}$) experiments.
The electromagnetic decay rates of mirror states are used to decompose the multipole electromagnetic matrix elements into isoscalar and isovector or equivalently proton and neutron matrix elements. This method is sensitive to the neutron matrix element because it is measured directly, and it is accurate since it depends only on electromagnetic interactions; it therefore can be used to test methods using inelastic hadron scattering. There is agreement with the results for ($\ensuremath{\alpha}$,${\ensuremath{\alpha}}^{\ensuremath{'}}$) on $^{26}\mathrm{Mg}$ and $^{42}\mathrm{Ca}$ but disagreement with the recent $^{18}\mathrm{O}$($\ensuremath{\pi}$,${\ensuremath{\pi}}^{\ensuremath{'}}$) experiments.