Nonlinear photon trident versus double Compton scattering and resummation of one-step terms
arXiv:2010.02128 · doi:10.1103/PhysRevD.102.116008
Abstract
We study the photon trident process, where an initial photon turns into an electron-positron pair and a final photon under a nonlinear interaction with a strong plane-wave background field. We show that this process is very similar to double Compton scattering, where an electron interacts with the background field and emits two photons. We also show how the one-step terms can be obtained by resumming the small- and large- expansions. We consider a couple of different resummation methods, and also propose new resummations (involving Meijer-G functions) which have the correct type of expansions at both small and large . These new resummations require relatively few terms to give good precision.
arXiv comment21 pages, 15 figures
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