Coupled-channels optical calculation of positron hydrogen resonances

作     者：于荣梅 周雅君 焦利光 程勇军 Yu Rong-Mei;Zhou Ya-Jun;Jiao Li-Guang;Cheng Yong-Jun

作者机构：The Academy of Fundamental and Interdisciplinary SciencesHarbin Institute of TechnologyHarbin 150081China 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2012年第21卷第1期

页      面：177-182页

核心收录：

学科分类：07[理学] 070203[理学-原子与分子物理] 0805[工学-材料科学与工程（可授工学、理学学位）] 0704[理学-天文学] 0702[理学-物理学] 

基　　金：Project supported by the National Natural Science Foundation of China(Grant No.10674055) 

主　　题：positron hydrogen resonance 

摘      要：An application of the coupled-channels optical method is given for the energy-dependent phenomena of positron- hydrogen resonances below the n = 2 excitation threshold. The equivalent local optical potential is used to account for the target polarization and positronium formation. The calculation includes 9 explicitly physical coupled channels. The lowest S-wave resonance energy position and new resonances are found. Angular dependence of the cross section in the resonance region are investigated.