# One-photon pair annihilation in pulsed plane-wave backgrounds

@article{Tang2019OnephotonPA, title={One-photon pair annihilation in pulsed plane-wave backgrounds}, author={S. Tang and Anton Ilderton and B. King}, journal={Physical Review A}, year={2019} }

We study the $2\ensuremath{\rightarrow}1$ process of electron-positron pair annihilation to a single photon in a plane-wave background. The probability of the process in a pulsed plane wave is presented, and a locally constant field approximation is derived and benchmarked against exact results. The stricter kinematics of annihilation (compared to the $1\ensuremath{\rightarrow}2$ processes usually studied) leads to a stronger dependence on the incoming particle states. We demonstrate this by…

## 5 Citations

### Electron-positron annihilation into two photons in an intense plane-wave field

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We derive an approximation to QED effects in strong background fields which can be employed to improve numerical simulations of laser-particle collisions. Treating the laser as a plane wave of…

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