arXiv:hep-ph/9903401·v1·High Energy Physics — Phenomenology

Axion Decay of a Photon in an External Electromagnetic Field

N.V. Mikheev · A.Ya. Parkhomenko · L.A. Vassilevskaya (Yaroslavl State (Demidov) University, Russia)

Abstract

An interaction of a pseudoscalar particle with two photons induced by an external electromagnetic field is used to study the photon decay $γ \to γ a$ 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.

Comments: 7 pages, latex, 1 PS figure