Effect of the tensor force in the exchange channel on the spin-orbit splitting in F 23 in the Hartree-Fock framework
Effect of the tensor force in the exchange channel on the spin-orbit splitting in F 23 in the Hartree-Fock framework
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DOI：
10.1103/physrevc.76.054310
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发表时间：
2007-05
影响因子：
3.1
通讯作者：
S. Sugimoto;H. Toki;K. Ikeda
中科院分区：
文献类型：
--
作者：
S. Sugimoto;H. Toki;K. Ikeda
利用交换通道中的张量力研究了23f中质子d轨道在HartreeFock框架中的自旋轨道分裂（ls-分裂）。最近的一项实验表明，23f中质子的ls分裂比17f中质子的ls分裂要小。我们的计算表明，由于张量力的作用，23f中的ls分裂减小了几个MeV。这一效应来自于0d5/2轨道上的价质子与已占中子通过张量力的相互作用，使得23f的l -分裂接近实验数据。
We study the spin-orbit splitting (ls-splitting) for the proton d-orbits in 23 F in the HartreeFock framework with the tensor force in the exchange channel. 23 F has one more proton around the neutron-rich nucleus 22 O. A recent experiment indicates that the ls-splitting for the proton dorbits in 23 F is reduced from that in 17 F. Our calculation shows that the ls-splitting in 23 F becomes smaller by about a few MeV due to the tensor force. This effect comes from the interaction between the valence proton and the occupied neutrons in the 0d5/2 orbit through the tensor force and makes the ls-splitting in 23 F close to the experimental data.