Electron scattering from the fine structure levels within the 1s22s22p23Peground state of C I

The authors have calculated cross sections for elastic and inelastic scattering from the fine structure levels within the 1s 2 2s 2 2p 2 3 P e ground state of C I using the R-matrix method. They include the states 1s 2 2s 2 2p 2 3 P e , 1 D e , 1 S e in the expansion of the total wavefunction, plus 3 S o , 3 P o and 3 D o polarisation pseudostates to allow for the ground state polarisability. The fine structure energy splittings are included explicitly. The authors present collision strengths for the inelastic transitions, averaged over a Maxwellian electron velocity distribution, for electron temperatures from 7.5 to 10000 K.