Observation of Spin-Conversion of Positronium in Zeolite
作者机构:Department of PhysicsWuhan UniversityWuhan 430072
出 版 物:《Chinese Physics Letters》 (中国物理快报(英文版))
年 卷 期:1993年第10卷第11期
页 面:684-687页
核心收录:
学科分类:07[理学] 0805[工学-材料科学与工程(可授工学、理学学位)] 0704[理学-天文学] 070202[理学-粒子物理与原子核物理] 0702[理学-物理学]
基 金:Supported by the National Natural Science Foundation of China
摘 要:We have measured the positron lifetime spectra of zeolite 13X as a function of exposed air *** lifetime components have been obtained and properly *** longer lifetimes τ_(s) and τ_(4) are attributed to ortho-positronium annihilating in the β-cage and supercage in zeolite *** interGsting observation is th&t the positron annihilation parameters vary significantly with the exposed air *** is interpreted in terms of the spinof positronium with paramagnetic oxygen.