Nuclear longitudinal form factors for axially deformed charge distributions expanded by nonorthogonal basis functions  

作　　者：刘健 张进娟 许昌 任中洲 

机构地区：[1]College of Science,China University of Petroleum (East China) [2]College of Electronic,Communication and Physics,Shandong University of Science and Technology [3]Department of Physics and Key Laboratory of Modern Acoustics,Nanjing University [4]Center of Theoretical Nuclear Physics,National Laboratory of Heavy-Ion Accelerator

出　　处：《Chinese Physics C》2017年第5期109-115,共7页中国物理C（英文版）

基　　金：Supported by National Natural Science Foundation of China(11505292,11175085,11575082,11235001,11275138,and 11447226);Shandong Provincial Natural Science Foundation,China(BS2014SF007);Fundamental Research Funds for Central Universities(15CX02072A)

摘　　要：In this paper,the nuclear longitudinal form factors are systematically studied from the intrinsic charge multipoles.For axially deformed nuclei,two different types of density profiles are used to describe their charge distributions.For the same charge distributions expanded with different basis functions,the corresponding longitudinal form factors are derived and compared with each other.Results show the multipoles C_λ of longitudinal form factors are independent of the basis functions of charge distributions.Further numerical calculations of longitudinal form factors of^（12）C indicates that the C_0 multipole reflects the contributions of spherical components of all nonorthogonal basis functions.For deformed nuclei,their charge RMS radii can also be determined accurately by the C_0 measurement.The studies in this paper examine the model-independent properties of electron scattering,which are useful for interpreting electron scattering experiments on exotic deformed nuclei.In this paper,the nuclear longitudinal form factors are systematically studied from the intrinsic charge multipoles.For axially deformed nuclei,two different types of density profiles are used to describe their charge distributions.For the same charge distributions expanded with different basis functions,the corresponding longitudinal form factors are derived and compared with each other.Results show the multipoles C_λ of longitudinal form factors are independent of the basis functions of charge distributions.Further numerical calculations of longitudinal form factors of^（12）C indicates that the C_0 multipole reflects the contributions of spherical components of all nonorthogonal basis functions.For deformed nuclei,their charge RMS radii can also be determined accurately by the C_0 measurement.The studies in this paper examine the model-independent properties of electron scattering,which are useful for interpreting electron scattering experiments on exotic deformed nuclei.

关 键 词：deformed longitudinal nuclei expanded spherical Nuclear contributions intrinsic systematically exotic 

分 类 号：O571[理学—粒子物理与原子核物理]