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arXiv · 2109.12540

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

C. F. Chen·Q. B. Chen·Xian-Rong Zhou·Yi-Yuan Cheng·Ji-Wei Cui·H. -J. Schulze
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Abstract

The deformations of multi-$\la$ hypernuclei corresponding to even-even core nuclei ranging from $^8$Be to $^{40}$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 $\la$ hyperons, but enhanced when adding 4 or 6 $\la$ hyperons. These differences are attributed to the fact that $\la$ hyperons are filled gradually into the three deformed $p$ 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.

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C. F. Chen, Q. B. Chen, Xian-Rong Zhou, Yi-Yuan Cheng, Ji-Wei Cui, H. -J. Schulze. 2021-09-26. Effects of $\bm\la$ hyperons on the deformations of even-even nuclei. https://doi.org/10.1088/1674-1137/ac5b58

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