Role of deformation in odd-even staggering in reaction cross sections for Ne30,31,32 and Mg36,37,38 isotopes
Role of deformation in odd-even staggering in reaction cross sections for Ne30,31,32 and Mg36,37,38 isotopes
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Ne30,31,32 和 Mg36,37,38 同位素反应截面中奇偶交错变形的作用
DOI：
10.1103/physrevc.96.064311
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发表时间：
2017
影响因子：
3.1
通讯作者：
Sagawa H.
中科院分区：
文献类型：
--
作者：
Urata Y.;Hagino K.;Sagawa H.
本文讨论了反晕效应在核反应截面中所观察到的奇偶交错中所起的作用。为此，我们构造的基态密度的和核的基础上变形的Woods-Saxon势，而对于和核，我们还考虑到配对相关使用Hartree-Fock-Bogoliubov方法。我们证明，当一个中子的分离能量是小的奇数质量的核，一个显着的奇偶交错仍然出现，即使与有限的变形，虽然交错的程度有所减少相比，球形的情况。这意味着配对反晕效应在产生弱束缚核反应截面的奇-偶交错中起着重要的作用。
We discuss the role of pairing antihalo effect in the observed odd-even staggering in reaction cross sections forandisotopes by taking into account the ground-state deformation of these nuclei. To this end, we construct the ground-state density for theandnuclei based on a deformed Woods-Saxon potential, while for theandnuclei we also take into account the pairing correlation using the Hartree-Fock-Bogoliubov method. We demonstrate that, when the one-neutron separation energy is small for the odd-mass nuclei, a significant odd-even staggering still appears even with finite deformation, although the degree of staggering is somewhat reduced compared to the spherical case. This implies that the pairing antihalo effect in general plays an important role in generating the odd-even staggering in reaction cross sections for weakly bound nuclei.