Cl K$\alpha$ resonant x-ray Raman scattering from CF$_3$Cl

Polarization dependent K$\alpha$ x-ray emission has been measured after core Cl 1{\it s} resonant excitation of gas phase CF$_3$Cl. All of these measurements in the near-threshold region show significant non-statistical polarization differences with photon energy. For photon energies above-threshold, the theoretical doublet ($\alpha$$_{1}$:$\alpha$$_{2}$ or 2$\textit{p}$$_{3/2}$:2$\textit{p}$$_{1/2}$) ratio of 2:1 is preserved but only when taking an average of the two polarization measurements. Work was partly supported by NSF grant PHY-01-40375.