We discuss the effects of pairing correlation on quasiparticle resonance. We analyze in detail how the width of the low-lying ($E_{x}lesssim 1$?MeV) quasiparticle resonance is governed by the pairing correlation in the neutron drip-line nuclei. We consider the ${}^{46}{ m Si} + n$ system to discuss the low-lying $p$-wave quasiparticle resonance. Solving the Hartree–Fock–Bogoliubov equation in coordinate space with the scattering boundary condition, we calculate the phase shift, the elastic cross section, the resonance width, and the resonance energy. We find that the pairing correlation has the effect of reducing the width of the quasiparticle resonance that originates from a particle-like orbit in weakly bound nuclei.
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机译:我们讨论配对相关对准粒子共振的影响。我们详细分析了低层($ E_ {x} lesssim 1 $?MeV)准粒子共振的宽度如何受中子滴线核中的配对相关性控制。我们考虑$ {} ^ {46} {m Si} + n $系统来讨论低洼的$ p $波准粒子共振。用散射边界条件求解坐标空间中的Hartree-Fock-Bogoliubov方程,我们计算出相移,弹性截面,共振宽度和共振能量。我们发现配对相关具有减小准粒子共振的宽度的作用,该准粒子共振的宽度源自弱束缚核中的类粒子轨道。
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