Quantum-number projected generator coordinate method for $^{21}$Ne with a chiral two-nucleon-plus-three-nucleon interaction
Abstract
We report a study of the low-lying states of deformed Ne within the framework of quantum-number projected generator coordinate method (PGCM), starting from a chiral two-nucleon-plus-three-nucleon (NN+3N) interaction. The wave functions of states are constructed as a linear combination of a set of axially-deformed Hartree-Fock-Bogliubov (HFB) wave functions with different quadrupole deformations. These HFB wave functions are projected onto different angular momenta and the correct neutron and proton numbers for Ne. The results of calculations based on the effective Hamiltonians derived by normal-ordering the 3N interaction with respect to three different reference states, including the quantum-number projected HFB wave functions for Ne, Ne, and an ensemble of them with equal weights, are compared. This study serves as a key step towards ab initio calculations of odd-mass deformed nuclei with the in-medium GCM.
Cite
@article{arxiv.2403.01177,
title = {Quantum-number projected generator coordinate method for $^{21}$Ne with a chiral two-nucleon-plus-three-nucleon interaction},
author = {W. Lin and E. F. Zhou and J. M. Yao and H. Hergert},
journal= {arXiv preprint arXiv:2403.01177},
year = {2024}
}
Comments
22page, 8 figures, an invited contribution to the special issue of Symmetry journal: "Restoration of Broken Symmetries in the Nuclear Many-Body Problem", edited by Prof. Javid Sheikh and Prof. Peter Ring