Photon-photon scattering: A Tutorial

@article{Liang2012PhotonphotonSA,
title={Photon-photon scattering: A Tutorial},
author={Yi Liang and Andrzej Czarnecki},
year={2012},
volume={90},
pages={11-26}
}
• Published 25 November 2011
• Physics
Long-established results for low-energy photon-photon scattering, gg → gg, have recently been questioned. We analyze that claim and demonstrate that it is inconsistent with experience. We demonstrate that the mistake originates from an erroneous manipulation of divergent integrals and discuss the connection with another recent claim about the Higgs de- cay into two photons. We show a simple way of correctly computing low-energy gg scattering.
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