分子XH(X=O,S, Se和 Te)中的正电子能级与正电子原子

基于全对称群的Dirac方程, 研究当存在核场时的正电子能级及其与核场的关系, 即计算在分子OH, SH, SeH和 TeH的核场下的正电子能级. 这时正电子的能量约为 e⁺=-1.022 MeV. 对于低能级, 当核场强增大时, 其能量有所升高, 而对较高能级, 核场强增大时, 其能量无明显变化. 正负电子的湮没过程为三光子湮没过程(the three-photon annihilation). 而当生成e⁺- e^-< 关键词： Dirac方程 三光子湮没过程 正态的正电子原子 电荷宇称守衡

The energy levels of positron under molecules XH(X=O, S, Se and Te)and positronium

The present work devotes to the energy levels of positron under molecules XH(X=O, S, Se and Te)and the relations with nuclear field using Dirac equation based on the full symmetry group. Under these nuclear fields, the energy of positron is about e⁺=-1.022 MeV. For the lower energy level, the energy of positron is increased with nuclear field; for the higher energy level, the energy of positron is nearly invariant with nuclear field. In this case, it is the three-photon annihilation. The formation of the positronium is in orthopositronium ³S, excited state, followed the conservation of charge parity.