论文标题
单一和双康普顿散射中的有限时间效果
Finite time effects in single and double Compton scattering
论文作者
论文摘要
在有限的相互作用时间的假设中，考虑了自由电子的康普顿散射过程。相应的横截面是在相对论量子电动力学的框架中获得的，使用具有复杂透射动量的Fermion Expagator的修改形式。结果表明，有限的时间效应可以在足够低的散射光子能量下观察到。所提出的方法还规范了双康普顿效应的横截面中出现的红外差异。讨论了考虑的理论方法的可能实验验证。
The process of Compton scattering by a free electron with subsequent reemission of one or two photons is considered in the assumption of finite interaction time. The corresponding cross sections are obtained in the framework of relativistic quantum electrodynamics using a modified form of fermion propagator with complex transmitted momentum. It is shown that finite time effects can be observable at sufficiently low energies of scattered photons. The proposed method also regularizes arising infrared divergence in the cross section of the double Compton effect. Possible experimental verification of considered theoretical approach is discussed.
