Double-excited resonant structure of photoionization

作     者：刘锦超 杨向东 王宗笠 程延松 

作者机构：Institute of PhysicsSichuan Union UniversityChengdu 610065China Department of PhysicsUniversity of VirginiaChariottesvilleVA 22901USA Department of PhysiosChongqing UniversityChongqing 630044China 

出 版 物：《Science China Mathematics》 (中国科学：数学（英文版）)

年 卷 期：1997年第40卷第7期

页      面：738-744页

核心收录：

学科分类：07[理学] 0809[工学-电子科学与技术（可授工学、理学学位）] 070205[理学-凝聚态物理] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0701[理学-数学] 0702[理学-物理学] 

基　　金：Project supported by the State Education Committee of China 

主　　题：double-excited resonance photoionization many-body perturbation. 

摘      要：The dominant diagrams were found in double-excited resonant structure of photoionization by using many-body perturbation *** on the characteristics of these diagrams,the couple-equation method was improved,and the summation of specific classes of these diagrams is to an infinite order,and the resonant peaks with the widths are obtained *** doubled-excited resonant structures (2p,3s)→(3p,np),(3p,nf),(3d,nd),(3d,ns) and (4s,ns) of the photoionization processes 2p→ks,kd are *** photoionization with excitation process (2p,3s)→(3p,kp) was included in the *** results of calculations are compared with the experimental data from 38.5 to 46.8 eV photon energies,which are in good agreement with the experiment.