Laser-assisted nuclear photoeffect reexamined
Abstract
The S-matrix element and the cross section of the laser-assisted nuclear photoeffect are recalculated in a gauge invariant manner taking into account the effect of the Coulomb field of the remainder nucleus. The γ-photon energy dependence of the laser free cross section obtained in the plane wave and long-wavelength Coulomb-Volkov approximations are compared. Numerically the laser-assisted partial cross sections with laser photon energy 2 keV and some different polarization states of γ-photon of energy 3 MeV are investigated.
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