Quantifying relativistic interactions from angular momentum partitioning measurements during photoionization.
We have measured the degree of helicity of fluorescent radiation from Ar+[3p4[3P]4p] 2P(o)1/2 formed by circularly polarized synchrotron radiation in the region of double excitations converging to Ar+3p4 nl satellite states. Angular momentum coupling allows the partitioning of the one unit of angular momentum brought into the system to be demarcated. We obtain a nonvanishing expectation value of the total spin of the residual ion-photoelectron system indicating significant relativistic interactions during the photoionization process.
Yenen
O
O
Behlen Laboratory of Physics, University of Nebraska-Lincoln, 68588-0111, USA.
McLaughlin
K W
KW
Jaecks
D H
DH
Sant'Anna
M M
MM
Seddon
E A
EA