Second Order Gyromagnetic Processes
Second order processes are described by Feynman diagrams with two electron-photon vertices. Such processes include Compton scattering, two-photon emission, two-photon pair creation and annihilation, Møller and Bhabha scattering, and the trident process. These processes have counterparts in the absence of a magnetic field, and an important motivation for the inclusion of the magnetic field was the discovery of radio and X-ray pulsars, and the recognition that the sources are strongly magnetized neutron stars . The magnetic field modifies these processes in various ways, two of which are particularly notable: the fact that electrons quickly relax to the ground Landau state, n=0, and the inclusion of gyromagnetic resonances.
- 11.A.A. Kozlenkov, I.G. Mitrofanov, Sov. Phys. JETP 64, 1173 (1987)Google Scholar