@article {8415,
	title = {Relativistic polarization analysis of Rayleigh scattering by atomic hydrogen},
	journal = {Physical Review A},
	volume = {86},
	year = {2012},
	note = {<p>PTDC/FIS/117606/2010 </p>
},
	month = {Oct},
	pages = {043405},
	abstract = {<p>A relativistic analysis of the polarization properties of light elastically scattered by atomic hydrogen is performed, based on the Dirac equation and second-order perturbation theory. The relativistic atomic states used for the calculations are obtained by making use of the finite basis set method and are expressed in terms of B splines and B polynomials. We introduce two experimental scenarios in which the light is circularly and linearly polarized, respectively. For each of these scenarios, the polarization-dependent angular distribution and the degrees of circular and linear polarization of the scattered light are investigated as a function of scattering angle and photon energy. Analytical expressions are derived for the polarization-dependent angular distribution which can be used for scattering by both hydrogenic as well as many-electron systems. Detailed computations are performed for Rayleigh scattering by atomic hydrogen within the incident photon energy range 0.5 to 5 keV. Particular attention is paid to the effects that arise from higher (nondipole) terms in the expansion of the electron-photon interaction.</p>
},
	url = {http://link.aps.org/doi/10.1103/PhysRevA.86.043405},
	author = {Safari, L and Amaro, P. and Fritzsche, S. and Santos, J. P. and Tashenov, S and Fratini, F.}
}
