$n$ - $A$弹性散射准粒子共振能下入射中子流涡度的配对效应
Pairing effects on vorticity of incident neutron current at quasiparticle resonance energies in $n$-$A$ elastic scattering
摘要：
在这项研究中，我们分析了如何入射中子流的影响，在Hartree-Fock-Bogoliubov理论的框架内描述的中子-核散射的配对效应进行数值计算的电流，涡度，和循环的入射中子流。我们发现，对入射中子通量的配对效应是完全不同的粒子型和空穴型准粒子共振。在h型准粒子共振的情况下，配对的作用是阻止中子通量进入核，减少循环。在p型准粒子共振的情况下，在能量低于共振能量的情况下，配对的作用是减少循环，但在能量高于共振能量的情况下，配对对中子通量的影响被逆转，相反，循环增加。
英文摘要：
In this study, we analyzed how the incident neutron current is affected by the pairing effect in the neutron-nucleus scattering described within the framework of Hartree-Fock-Bogoliubov theory by performing numerical calculations in terms of current, vorticity, and circulation of the incident neutron current. We found that the pairing effect on the incident neutron flux is completely different between particle-type and hole-type quasiparticle resonances. In the case of h-type quasiparticle resonance, the pairing acts to prevent the neutron flux from entering the nucleus, reducing circulation. In the case of p-type quasiparticle resonance, pairing acts to reduce circulation at energies lower than the resonance energy, but at energies higher than the resonance energy, the effect of pairing on the neutron flux is reversed and, conversely, circulation is increased.
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