Separating Dipole and Quadrupole Contributions to Single-Photon Double Ionization.
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DOI: 10.1103/physrevlett.121.173003
Abstract: We report on a kinematically complete measurement of double ionization of helium by a single 1100 eV circularly polarized photon. By exploiting dipole selection rules in the two-electron continuum state, we observed the angular emission pattern… read more here.
Keywords: photon; double ionization; quadrupole contributions; dipole quadrupole ... See more keywords