P.F. Fougere, R.K. Nesbet
The Journal of Chemical Physics
Variational calculations locate and identify resonances and new threshold structures in electron impact excitation of He metastable states, in the region of the 33S and 31S excitation thresholds. A virtual state is found at the 33S threshold.
P.F. Fougere, R.K. Nesbet
The Journal of Chemical Physics
J.N. Bardsley, R.K. Nesbet
Physical Review A
R.K. Nesbet
Journal of Mathematical Physics
R.K. Nesbet
Journal of Mathematical Physics