Photoionization cross sections of the 3s3p 3P state of Mg: The discrepancy between theory and experiment

Abstract

The photoionization cross sections of the excited levels (3s3p 3P0,1,2) of atomic Mg are calculated theoretically using both the nonrelativistic and fully relativistic R-matrix methods. The big discrepancies (a factor of about 3), which exists between theoretical and former experimental determinations, urges us to make additional measurements of the photoionization cross sections for the excited states of Mg. © Published under licence by IOP Publishing Ltd.