Spin-dipole strength functions of 4He with realistic nuclear forces
Spin-dipole strength functions of 4He with realistic nuclear forces
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具有真实核力的 4He 自旋偶极子强度函数
DOI：
10.1103/physrevc.87.034001
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发表时间：
2013
影响因子：
3.1
通讯作者：
Y. Suzuki
中科院分区：
文献类型：
--
作者：
W. Horiuchi;Y. Suzuki
He 的等标量和等矢量自旋偶极子激发均在复标度方法中使用真实核力进行研究。 He 的基态和原子核的离散连续态用明确相关的高斯函数描述，并用角运动的全局向量增强。二体和三体衰变通道经过专门处理，以考虑最终状态相互作用。观察到的负宇称能级的共振能量和宽度都与根据自旋偶极子和电偶极子强度函数以及复尺度哈密顿量的能量本征值计算得出的结果相当一致。结合 He 基态张量相关性讨论了非能量加权和能量加权的自旋偶极子和规则。
Both isoscalar and isovector spin-dipole excitations ofHe are studied using realistic nuclear forces in the complex scaling method. The ground state ofHe and discretized continuum states withfornuclei are described in explicitly correlated Gaussians reinforced with global vectors for angular motion. Two- and three-body decay channels are specifically treated to take into account final state interactions. The observed resonance energies and widths of the negative-parity levels are all in fair agreement with those calculated from both the spin-dipole and electric-dipole strength functions as well as the energy eigenvalues of the complex scaled Hamiltonian. Spin-dipole sum rules, both non-energy-weighted and energy-weighted, are discussed in relation to tensor correlations in the ground state ofHe.