Effects of Λ hyperons on the deformations of even–even nuclei  

作　　者：C.F.Chen Q.B.Chen Xian-Rong Zhou Y.Y.Cheng Ji-Wei Cui H.-J.Schulze 陈超锋;陈启博;周先荣;程奕源;崔继伟;H.-J.Schulze(Department of Physics,East China Normal University,Shanghai 200241,China;School of Physics and Optoelectronic Engineering,Xidian University,Xi'an 710071,China;INFN Sezione di Catania,Dipartimento di Fisica,Universitádi Catania,Via Santa Sofia 64,95123 Catania,Italy)

机构地区：[1]Department of Physics,East China Normal University,Shanghai 200241,China [2]School of Physics and Optoelectronic Engineering,Xidian University,Xi'an 710071,China [3]INFN Sezione di Catania,Dipartimento di Fisica,Universitádi Catania,Via Santa Sofia 64,95123 Catania,Italy

出　　处：《Chinese Physics C》2022年第6期212-218,共7页中国物理C（英文版）

基　　金：Supported by the National Natural Science Foundation of China (12175071, 11775081, 11905165)。

摘　　要：The deformations of multi-Λ hypernuclei corresponding to even-even core nuclei ranging from^(8)Be to^(40)Ca with 2,4,6,and 8 hyperons are studied using the deformed Skyrme-Hartree-Fock approach.It is found that the deformations are reduced when adding 2 or 8 Λ hyperons,but enhanced when adding 4 or 6 Λ hyperons.These differences are attributed to the fact that Λ 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.

关 键 词：DEFORMATION even-even nuclei effects of hyperon(s) 

分 类 号：O571[理学—粒子物理与原子核物理]