Collective excitations induced by pairing anti-halo effect
Abstract
Important features of low-frequency collective vibrational excitations in neutron drip line nuclei are studied. We emphasize that pairing anti-halo effect in the Hartree-Fock-Bogoliubov (HFB) theory play crucial roles to realize collective motions in loosely bound nuclei. We study the spatial properties of one particle - one hole (1p-1h) states with/without selfconsistent pairing correlations by solving simplified HF(B) equations in coordinate space. Next, by performing Skyrme-HFB plus selfconsistent quasiparticle random phase approximation (QRPA) we investigate the first 2+ states in neutron rich Ni isotopes. Three types of calculations, HFB plus QRPA, resonant BCS plus QRPA, and RPA are compared.
Keywords
Cite
@article{arxiv.nucl-th/0404030,
title = {Collective excitations induced by pairing anti-halo effect},
author = {Masayuki Yamagami},
journal= {arXiv preprint arXiv:nucl-th/0404030},
year = {2015}
}
Comments
8 pages, 6 figures, Proceedings of the Fifth Japan China Joint Nuclear Physics Symposium, March 7-10, 2004, Kyushu University, Japan