Theoretical study on neutron distribution of ^208Pb by parity-violating electron scattering  

作　　者：刘健 张存 任中洲 许昌 

机构地区：[1]College of Science, China University of Petroleum (East China), Qingdao 266580, China [2]School of Physics and Key Laboratory of Modern Acoustics, Institute of Acoustics, Nanjing University, Nanjing 210093, China [3]Kavli Institute for Theoretical Physics China, Beijing 100190,China [4]Center of Theoretical Nuclear Physics, National Laboratory of Heavy-Ion Accelerator, Lanzhou 730000, China

出　　处：《Chinese Physics C》2016年第3期59-65,共7页中国物理C（英文版）

基　　金：Supported by the National Natural Science Foundation of China(11505292,11175085,11235001,11447226);the Shandong Provincial Natural Science Foundation,China(BS2014SF007);the Fundamental Research Funds for the Central Universities(15CX02072A,15CX02070A,15CX05026A,13CX10022A,14CX02157A)

摘　　要：The precise determination of neutron distribution has important implications for both nuclear structure and nuclear astrophysics. The purpose of this paper is to study the characteristics of neutron distribution of^208 Pb by parity-violating electron scattering（PVS）. Parity-violating asymmetries of^208 Pb with different types of neutron skins are systematically calculated and compared with the experimental data of PREx. The results indicate that the PVS experiments are very sensitive to the nuclear neutron distributions. From further PVS measurements, detailed information on nuclear neutron distributions can be extracted.The precise determination of neutron distribution has important implications for both nuclear structure and nuclear astrophysics. The purpose of this paper is to study the characteristics of neutron distribution of^208 Pb by parity-violating electron scattering（PVS）. Parity-violating asymmetries of^208 Pb with different types of neutron skins are systematically calculated and compared with the experimental data of PREx. The results indicate that the PVS experiments are very sensitive to the nuclear neutron distributions. From further PVS measurements, detailed information on nuclear neutron distributions can be extracted.

关 键 词：parity-violating electron scattering nuclear neutron distributions neutron and proton form factors 

分 类 号：O571.5[理学—粒子物理与原子核物理]