激光场中正电子对反质子的辐射复合反应

Positron-antiproton Radiative Recombination in the Presence of a Laser Field

在软光子近似下 ,计算了激光场中正电子对反质子的辐射复合过程 .辐射场作为经典场处理 ,入射正电子态用Coulomb Volkov波函数描述 ,末道形成的反氢缀饰态由含时间微扰论给出 .

In the soft-photon approximation, the laser-assisted radi at ive recombination between a positron and a antiproton is investigated. The lase r field is treated as a classical electromagnetic field. The positron state is described by the Coulomb-Volkov wavefunction, and the dressed state of antihyd rogen in final state is a perturbative solution of the time-dependent Schding er equation. It is predicted that the cross section for antihydrogen formation is greatly lowered in the presence of the laser background.