Nuclear magnetic moments for J~π=2_1^+ state of ^(10)Be with ab initio Monte Carlo shell model calculation  

作　　者：LIU Lang LI Jian 

机构地区：[1]School of Science,Jiangnan University [2]College of Physics,Jilin University

出　　处：《Science China(Physics,Mechanics & Astronomy)》2014年第2期239-243,共5页中国科学：物理学、力学、天文学（英文版）

基　　金：supported by the Fundamental Research Funds for the Central Universities (JUSRP1035);NSFC (Grant Nos. 11205068 and 11305077);CPSC (Grant No. 2012M520667)

摘　　要：The magnetic moment of 2＋1 state for 10Be are calculated and investigated in terms of single particle orbits for protons and neutrons under the framework of ab initio Monte Carlo shell model method in an emax=3 model space. The reduced matrix elements of orbital and spin angular momentum are evaluated. It is found that the orientations of orbital angular momentum in different single particle orbits are consistent. Conversely, the orientations of spin in different single particle orbits tend to be chaotic. The nuclear magnetic moment of 2＋1 state for 10Be is obtained as 1.006 ,UN and is discussed in regards to the contribution of orbital and spin angular momentum both for protons and neutrons. The corresponding g-factor is also given.The magnetic moment of 2+1 state for 10Be are calculated and investigated in terms of single particle orbits for protons and neutrons under the framework of ab initio Monte Carlo shell model method in an emax = 3 model space. The reduced matrix elements of orbital and spin angular momentum are evaluated. It is found that the orientations of orbital angular momentum in diferent single particle orbits are consistent. Conversely,the orientations of spin in diferent single particle orbits tend to be chaotic. The nuclear magnetic moment of 2+1 state for 10Be is obtained as 1.006N and is discussed in regards to the contribution of orbital and spin angular momentum both for protons and neutrons. The corresponding g-factor is also given.

关 键 词：nuclear magnetic moment Monte Carlo shell model 10Be ab initio 

分 类 号：O571[理学—粒子物理与原子核物理] O242.2[理学—物理]