Differential cross sections of positron-hydrogen collisions

作     者：于荣梅 濮春英 黄晓玉 殷复荣 刘旭焱 焦利光 周雅君 Rong-Mei Yu;Chun-Ying Pu;Xiao-Yu Huan;Fu-Rong Yin;Xu-Yan Liu;Li-Guang Jiao;Ya-Jun Zhou

作者机构：College of Physics and Electronic Engineering Nanyang Normal University College of Physics Jilin University Institute of Atomic and Molecular Physics Jilin University 

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

年 卷 期：2016年第25卷第7期

页      面：204-208页

核心收录：

学科分类：07[理学] 070203[理学-原子与分子物理] 0702[理学-物理学] 

基　　金：Project supported by the Nanyang Normal University Science Foundation of China(Grant No.ZX2013017) the National Natural Science Foundation of China(Grant Nos.11174066,61306007,and U1304114) 

主　　题：differential cross section resonance positron hydrogen 

摘      要：We make a detailed study on the angular differential cross sections of positron–hydrogen collisions by using the momentum-space coupled-channels optical（CCO） method for incident energies below the H ionization threshold. The target continuum and the positronium（Ps） formation channels are included in the coupled-channels calculations via a complex equivalent-local optical potential. The critical points, which show minima in the differential cross sections, as a function of the scattering angle and the incident energy are investigated. The resonances in the angular differential cross sections are reported for the first time in this energy range. The effects of the target continuum and the Ps formation channels on the different cross sections are discussed.