A Theoretical Study of Photoabsorption Cross Sections of Na^＋ 2  

作　　者：张卫华 高翔 韩小英 李家明 

机构地区：[1]Key Laboratory of Atomic and Molecular Nanosciences of Ministry of Education, Department of Physics, Tsinghua University, Beijing 100084 [2]Department of Physics, Shanghai Key Laboratory for Laser Fabrication and Material Science, Shanghai Jiao Tong University, Shanghai 200030

出　　处：《Chinese Physics Letters》2007年第8期2230-2233,共4页中国物理快报（英文版）

基　　金：Supported by the Ministry of Science and Technology and Ministry of Education of China, the Key Project of the Ministry of Education of China （No 306020）, the National Natural Science Foundation of China, the National High-Tech ICF Committee in China and the Yin-He Super-coInputer Center, Institute of Applied Physics and Mathematics, Beijing, China, the National Basic Research Programme of China under Grant No 2006CB921400 and the National Natural Science Foundation of China under Grant No 10574162.

摘　　要：In the framework of quantum defect theory, we calculate photoabsorption cross sections of Na^＋ 2. Based on our calculations, there is an absorption window in the photoabsorption cross sections of Na^＋ 2. and more than one bump above the absorption window. The calculated photoabsorption cross sections provide an explanation for the abnormal bump in the experimental measurements of Hudson, which is a long-standing experimental puzzle.In the framework of quantum defect theory, we calculate photoabsorption cross sections of Na^＋ 2. Based on our calculations, there is an absorption window in the photoabsorption cross sections of Na^＋ 2. and more than one bump above the absorption window. The calculated photoabsorption cross sections provide an explanation for the abnormal bump in the experimental measurements of Hudson, which is a long-standing experimental puzzle.

关 键 词：NEAR-THRESHOLD STRUCTURES QUANTUM-DEFECT THEORY SI 2P EDGES OSCILLATOR-STRENGTHS MOLECULAR-HYDROGEN SPECTRA GEOMETRY 

分 类 号：O57[理学—粒子物理与原子核物理]