丰中子奇A核^(37-47)P自旋和宇称的相对论平均场模型研究  

Spins and parities of neutron-rich odd-A ^(37-47)P and relativistic mean field model

作　　者：王再军[1] 

机构地区：[1]天津职业技术师范大学理学院,天津300222

出　　处：《天津职业技术师范大学学报》2014年第1期1-4,共4页Journal of Tianjin University of Technology and Education

基　　金：国家自然科学基金项目(11275138;10675090);天津职业技术师范大学科研发展基金项目(KJYB11-3)

摘　　要：用相对论平均场模型结合NL3、TM2和NL-SH参数对P的奇A核同位素的2s1/2和1d3/2单质子能级变化趋势以及自旋和宇称进行了理论计算。发现丰中子同位素37-47P,尤其是47P中可能存在2s1/2和1d3/2单质子能级反转。对于37P和39P,TM2和NL-SH参数给出的自旋和宇称是(3/2)+,NL3给出的是(1/2)+;对于41-47P,NL3、TM2和NL-SH给出的自旋和宇称都是(3/2)+。自旋和宇称的结果只有部分和NUBASE2012中的估计值是一致的。The 2sl/2 and ld3/2 single-proton energy levels and the spin and parity values of the odd-A P isotopes are studied by using the relativistic mean field model with the NL3, TM2 and NL-SH parameters. Results show that the 2Sl/2 and ld3/2 proton level inversion may exist in the neutron-rich isotopes 37-47p, especially in 47p. For the spins and parities, the predictions for 37p and 39p with TM2 and NL-SH parameters are （3/2）＋, and those with NL3 are （1/2）＋; the predictions for 41-47p with TM2, NL-SH and NL3 are all （3/2）＋. Only part of the results of the predicted spin and parity values agree with the estimates given by the NUBASE2012.

关 键 词：相对论平均场模型 自旋 宇称 能级反转 P同位素 

分 类 号：O571.21[理学—粒子物理与原子核物理]