Super-elastic electron scattering from the laser-excited 41P1 state of calcium at low incident energy

Alex Knight-Percival (1) , Sarah Jhumka (1) , Martyn Hussey (1) , Andrew James Murray (1)

1 School of Physics and Astronomy [Manchester]

Atomic Collision Parameters have been measured for electron impact excitation of calcium using the superelastic scattering method, at incident electron energies equivalent to ~10eV and ~12eV. The parameters P lin, L ⊥ and γ were derived for the 4 1 P 1 state, and the related Stokes parameters determined. The results are compared to previously published calculations from four different theories: a relativistic distorted wave calculation, an R-matrix calculation, an R-matrix theory using B-splines, and a Convergent Close Coupling theory.

Mots clés: Super-elastic scattering; calcium; Atomic Collision Parameters; Stokes parameters.; Stokes parameters

Alex Knight-Percival, Sarah Jhumka, Martyn Hussey, Andrew James Murray. Super-elastic electron scattering from the laser-excited 41P1 state of calcium at low incident energy. Journal of Physics B: Atomic, Molecular and Optical Physics, 2011, 44 (10), pp.105203. ⟨10.1088/0953-4075/44/10/105203⟩. ⟨hal-00617387⟩