PaperPanorama
FAQ

Nuclear Theory·nucl-th

Monday·September 18, 2023

9 papers—2 primary·7 cross-listed

All9Primary2Cross-lists7
  1. 01

    Analysis of the 16C(d,p)17C reaction from microscopic 17C wave functions

    Le Hoang Chien · Pierre Descouvemont

    We present a semi-microscopic study of the 16C(d,p)17C transfer reaction. The 17C overlap integrals and spectroscopic factors are obtained from a microscopic cluster model, involving many 16C+n configurations. This microscopic model provides a fair description of the 17C bound-state energies. The 16C+d scattering wave functions are defined in the CDCC method, where the deuteron breakup is simulated by pseudostates. The transfer cross sections are in good agreement with recent data. We confirm the 16C(2+)+n structure of the ground state, and show that deuteron breakup effects have a significant influence on the cross sections. We study the 17C(p,d)16C reverse reaction and suggest that the cross section to the 2+ state should be large. A measurement of the ground-state cross section would provide a strong test of the microscopic wave functions.

    nucl-th0 citations
  2. 02

    Evolution of shell closures in the region in deformed relativistic Hartree-Bogoliubov theory in continuum

    Ru-You Zheng · Xiang-Xiang Sun · Guo-fang Shen · Li-Sheng Geng

    Magicity, or shell closure, plays an important role in our understanding of complex nuclear phenomena. In this work, we employ one of the state-of-the-art density functional theories, the deformed relativistic Hartree-Bogoliubov theory in continuum (DRHBc) with the density functional PC-PK1, to investigate the evolution of the shell closures in the region. We show how these three conventional shell closures evolve from the proton drip line to the neutron drip line by studying the charge radii, two-neutron separation energies, two-neutron gaps, quadrupole deformations, and single-particle levels. In particular, we find that in the region, the shell closure disappears or becomes quenched, mainly due to the deformation effects. Similarly, both experimental data and theoretical predictions indicate that the shell closure disappears in the Mn isotopic chain, also predominantly due to the deformation effects. The DRHBc theory predicts the existence of the shell closure in the Ca, Sc, and Ti isotopic chains, but the existing data for the Ti isotopes suggests the contrary, and therefore more investigations are needed.

    nucl-thnucl-exCPC(2024)·15 citations

Affiliations

first authorsco-authorsvia INSPIRE