The First Determination of the Level Structure ofan sd-shell Hypernucleus 19F(Lambda)
The First Determination of the Level Structure ofan sd-shell Hypernucleus 19F(Lambda)
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sd壳超核19F(Lambda)能级结构的首次测定
DOI：
10.1103/physrevlett.120.132505
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
K.Imai et al.,
中科院分区：
文献类型：
--
作者：
S.B.Yang;S.Hasegawa;K.Imai et al.,
本文报道了首次观测到的壳层超核辐射。通过测量跃迁的射线能量，确定了基态二重态和态之间的能量间隔为。此外，还观察到三射线峰，并将其指定为、和跃迁。确定了和态的激发能分别为和.研究发现，基于已有的核和壳层超核数据的理论模型能很好地描述基态双态间距。
We report on the first observation ofrays emitted from an-shell hypernucleus,. The energy spacing between the ground state doublet,andstates, ofis determined to beby measuring the-ray energy of thetransition. In addition, three-ray peaks are observed and assigned as,, andtransitions. The excitation energies of theandstates are determined to beand, respectively. It is found that the ground state doublet spacing is well described by theoretical models based on existing- and-shell hypernuclear data.