Low-lying continuum states of drip-line Oxygen isotopes
Abstract
Low-lying continuum states of exotic oxygen isotopes are studied, by introducing the Continuum-Coupled Shell Model (CCSM) characterized by an infinite wall placed very far and by an interaction for continuum coupling constructed in a close relation to realistic shell-model interaction. Neutron emission spectra from exotic oxygen isotopes are calculated by the doorway-state approach in heavy-ion multi-nucleon transfer reactions. The results agree with experiment remarkably well, as an evidence that the continuum effects are stronger than 1 MeV, consistently with the shell evolution in exotic nuclei. The results by this CCSM doorway-state approach are compared with calculations on neutron-scattering resonance peaks made within the CCSM phase-shift approach and also with those obtained in the Gamow shell model, by taking the same interaction. Remarkable similarities in peak energies and certain differences in widths are then obtained.
Keywords
Cite
@article{arxiv.1001.0729,
title = {Low-lying continuum states of drip-line Oxygen isotopes},
author = {Koshiroh Tsukiyama and Takaharu Otsuka and Rintaro Fujimoto},
journal= {arXiv preprint arXiv:1001.0729},
year = {2015}
}
Comments
This paper has been withdrawn by the author due to the publication in PTEP journal with considerable expansion. The re-submission to arXiv has been given up due to the differences in style files, etc