Rotational properties and blocking effects in N=152 isotones ^(254)No,^(255)Lr,and ^(256)Rf  

作　　者：Jun Zhang Hai-Qian Zhang Xiao-Tao He 章骏;张海黔;贺晓涛(College of Physics,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China;College of Materials Science and Technology,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)

机构地区：[1]College of Physics,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China [2]College of Materials Science and Technology,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China

出　　处：《Chinese Physics C》2025年第2期112-116,共5页中国物理C(英文版)

基　　金：supported by the National Key R&D Program of China(2023YFA1606503,2024YFE0109804);the National Natural Science Foundation of China(12475121)。

摘　　要：The ground-state bands in the isotones^(254)No,^(255)Lr,and^(256)Rf are investigated using the cranked shell model(CSM),with pairing correlations treated via the particle-number-conserving(PNC)method.The experimentally kinematic moments of inertia are reproduced well by the PNC-CSM calculations,and the contributions to from neutrons exhibit remarkable similarities.Compared to^(254)No,the observed identity of in 256Rf is a result of the negligible contribution to from the two additional protons partially occupying the,,and orbitals.The increase in observed in the odd-A nucleus^(255)Lr,compared to those of the neighboring even-even isotones^(254)No and^(256)Rf,is attributed to the contribution of the proton owing to the blocking of the nucleon on the proton orbital.Compared to the case of the heavier isotones 255Lr and^(256)Rf,the different behavior of the value above MeV in^(254)No is predicted to be due to the level crossing.

关 键 词：ground-state bands rotational properties blocking effects 152 isotones 

分 类 号：O571[理学—粒子物理与原子核物理]