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Showing 2014 · physics.atom-phShow all
3 papers · 2 filters
physics.atom-ph2014★ 4 cited
Analytical evaluation of atomic form factors: application to Rayleigh scattering
L. Safari, J. P. Santos, P. Amaro +2
Atomic form factors are widely used for the characterization of targets and specimens, from crystallography to biology. By using recent mathematical results, here we derive an anal…
physics.atom-ph2014★ 7 cited
Spin effects probed by Rayleigh X-ray scattering off hydrogenic ions
Laleh Safari, Jose Paulo Santos, Pedro Amaro +1
We study the polarization characteristics of x-ray photons scattered by hydrogenic atoms, based on the Dirac equation and second-order perturbation theory. The relativistic states…
physics.atom-ph2014★ 9 cited
Angular and polarization analysis for two-photon decay of 2s hyperfine states of hydrogenlike Uranium
Laleh Safari, Pedro Amaro, Jose Paulo Santos +1
The amplitude of two-photon transitions between hyperfine states in hydrogenlike ions is derived based on relativistic Dirac equation and second order perturbation theory. We study…