α Decays in Superstrong Static Electric Fields  

作　　者：Dong Bai Zhong-Zhou Ren 柏栋;任中洲

机构地区：[1]School of Physics, Nanjing University [2]School of Physics Science and Engineering, Tongji University

出　　处：《Communications in Theoretical Physics》2018年第11期559-564,共6页理论物理通讯（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant Nos.11535004,11761161001,11375086,11120101005,11175085 and 11235001;the National Key R&D Program of China under Grant No.2018YFA0404403;the National Major State Basic Research and Development of China,under Grant No.2016YFE0129300;the Science and Technology Development Fund of Macao under Grant No.008/2017/AFJ

摘　　要：Superstrong static electric fields could deform Coulomb barriers between α clusters and daughter nuclei,and bring up the possibility of speeding up α decays. We adopt a simplified model for the spherical α emitter^(212)Po and study its responses to superstrong static electric fields. We find that superstrong electric fields with field strengths|E|～0.1 MV/fm could turn the angular distribution of α emissions from isotropic to strongly anisotropic, and speed upα decays by more than one order of magnitude. We also study the influences of superstrong electric fields along the Po isotope chains, and discuss the implications of our studies on α decays in superstrong monochromatic laser fields. The study here might be helpful for future theoretical studies of α decay in realistic superstrong laser fields.

关 键 词：α DECAY CLUSTER model STATIC ELECTRIC FIELD 

分 类 号：O571.321[理学—粒子物理与原子核物理]