中能质子与^4He原子核弹性散射中N-N振幅的相改变  

Phase Variation of Nucleon-Nucleon Amplitude for Proton-4He Elastic Scattering in the Intermediate Energy Range

作　　者：王世来[1] 邓一兵[1] 宋桂莲[2] 

机构地区：[1]浙江海洋学院物理系,舟山316004 [2]哈尔滨师范大学物理系,哈尔滨150080

出　　处：《高能物理与核物理》2005年第7期664-667,共4页High Energy Physics and Nuclear Physics

基　　金：浙江省教育厅资金资助~~

摘　　要：在KMT多重散射理论框架下,应用动量空间一级光学势,基于Franco和Yin关于核子-核子散射振幅的相随动量转移而改变的建议,研究了入射能量为1GeV时的质子-4He弹性散射.发现这个相改变使得KMT类型的理论计算的微分散射截面和极化本领与实验符合得更好.This paper is based on a suggestion by Franco and Yin that the phase of the nucleon-nucleon scattering amplitude should vary with momentum transfer. The elastic scattering of the intermediate energy proton on 4He is studied by applying the KMT multiple scattering theory with microscopic momentum space optical potential. The results show that the phase leads to differential cross section and polarization which are in better agreement with experimental data.

关 键 词：弹性散射 中能质子 原子核 微分散射截面 核子-核子 理论框架 多重散射 动量空间 动量转移 散射振幅 理论计算 入射能量 光学势 

分 类 号：O571[理学—粒子物理与原子核物理]