The transitions gamma gamma -> nu bar nu and gamma -> gamma gamma in a strong magnetic field

Details The transitions gamma gamma -> nu bar nu and gamma -> gamma gamma in a strong magnetic field The transitions gamma gamma -> nu bar nu and gamma -> gamma gamma in a strong magnetic field

1998-08-06

arxiv.org/abs/hep-ph/9808246v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, LaTeX, talk presented at the Ringberg Euroconference ``New Trends in Neutrino Physics'', Ringberg Castle, Tegernsee,

Scientific paper

The photon-neutrino process gamma gamma -> nu bar nu and photon splitting are considered in a strong magnetic field. The partial polarization amplitudes are calculated within the standard model in the limit of a strong field. The amplitudes do not depend on the field strength in this limit. Using the vector parts of the amplitudes, the process of the photon splitting gamma -> gamma gamma is investigated both below and above the pair creation threshold. The splitting probabilities are calculated taking account of the photon dispersion and large radiative corrections near the resonance.

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