Azimuthal angle distributions of neutrons emitted from the Be9(γ,n) reaction with linearly polarized γ rays
Azimuthal angle distributions of neutrons emitted from the Be9(γ,n) reaction with linearly polarized γ rays
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线偏振 γ 射线 Be9(γ,n) 反应发射中子的方位角分布
DOI：
10.1103/physrevc.98.064611
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发表时间：
2018
影响因子：
3.1
通讯作者：
Chiba Satoshi
中科院分区：
文献类型：
--
作者：
Kikuchi Yuma;Ogata Kazuyuki;Hayakawa Takehito;Chiba Satoshi
用三体模型和Lippmann-Schwinger方程的复标度解计算了线极化射线的电磁跃迁，研究了发射中子的方位角分布。我们计算了各向异性参数随光子入射能量的变化，并讨论了各向异性参数对核结构和跃迁模的敏感性。结果表明，即使在截面上不能清楚地观察到中子与线极化线反应所发射的中子的方位角分布，也能用来鉴别末态的共振。
The electromagnetic transitions ofwith linearly polarizedrays are calculated by using thethree-body model and the complex-scaled solutions of the Lippmann-Schwinger equation; the azimuthal angle distributions of the emitted neutrons are investigated. We calculate the anisotropy parameter as a function of the photon incident energyand discuss how sensitive the anisotropy parameter is to nuclear structure and transition modes. The result suggests that the azimuthal angle distribution of neutrons emitted from thereaction with the linearly polarizedrays is useful to identify the resonances in the final states even if it is not clearly observed in the cross section.