# Axion Decay of a Photon in AN External Electromagnetic Field

@article{Mikheev1998AxionDO, title={Axion Decay of a Photon in AN External Electromagnetic Field}, author={Nickolay V. Mikheev and Alexander Ya. Parkhomenko and Lund University and Russia.}, journal={Modern Physics Letters A}, year={1998}, volume={13}, pages={1899-1905} }

An interaction of a pseudoscalar particle with two photons induced by an external electromagnetic field is used to study the photon decay γ→γa where a is a pseudoscalar particle associated with the Peccei–Quinn U(1) symmetry. The field-induced axion emission by photon is analyzed as a possible source of energy losses by astrophysical objects.

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