Study of weakly-bound odd-A nuclei with quasiparticle blocking

TL;DR

This study employs a coordinate-space Hartree-Fock-Bogoliubov approach with quasiparticle blocking to investigate weakly bound odd-A nuclei, revealing the emergence of deformed halo structures influenced by blocking effects.

Contribution

It introduces a detailed analysis of halo structures in odd-A nuclei using quasiparticle blocking within the HFB framework, highlighting the impact on nuclear deformation.

Findings

$^{19}$B and $^{37}$Mg exhibit deformed halo structures

Blocking effects significantly influence halo formation

Comparison with non-blocked calculations shows notable differences

Abstract

The coordinate-space Hartree-Fock-Bogoliubov (HFB) approach with quasiparticle blocking has been applied to study the odd-A weakly bound nuclei $^{17,19}$B and $^{37}$Mg, in which halo structures have been reported in experiments. The Skyrme nuclear forces SLy4 and UNEDF1 have been adopted in our calculations. The results with and without blocking have been compared to demonstrate the emergence of deformed halo structures due to blocking effects. In our calculations, $^{19}$B and $^{37}$Mg have remarkable features of deformed halos.