English

Effects of $\bm\la$ hyperons on the deformations of even-even nuclei

Nuclear Theory 2022-06-15 v1

Abstract

The deformations of multi-\la\la hypernuclei corresponding to even-even core nuclei ranging from 8^8Be to 40^{40}Ca with 2, 4, 6, and 8 hyperons are studied in the framework of the deformed Skyrme-Hartree-Fock approach. It is found that the deformations are reduced when adding 2 or 8 \la\la hyperons, but enhanced when adding 4 or 6 \la\la hyperons. These differences are attributed to the fact that \la\la hyperons are filled gradually into the three deformed pp orbits, of which the [110]1/2^- orbit is prolately deformed and the degenerate [101]1/2^- and [101]3/2^- orbits are oblately deformed.

Keywords

Cite

@article{arxiv.2109.12540,
  title  = {Effects of $\bm\la$ hyperons on the deformations of even-even nuclei},
  author = {C. F. Chen and Q. B. Chen and Xian-Rong Zhou and Yi-Yuan Cheng and Ji-Wei Cui and H. -J. Schulze},
  journal= {arXiv preprint arXiv:2109.12540},
  year   = {2022}
}