Add to ORKGThe formation and decay of the two lowest-lying, triply excited He- resonances in the autoionizing region of the helium spectrum (57-60 eV) have been studied by measuring electron-impact excitation functions for the n = 2 singly excited states of helium as a function of electron scattering angle. These results offer unambiguous confirmation of the classification of these states as He- 2s 2p2 2P and 2s2p22D, respectively. Furthermore, the observation of the relative strengths of the decay of these features into the various final states enables some speculation as to the structure of the three excited electrons
A spectral approach of configuration interaction type is used to evaluate energies and widths for a ...
The trapped-electron method is applied to the excitation by electron impact of the (2p2)3P state, th...
Les états doublement excités des ions héliumoïdes du type I(2-2)+** situés sous le seuil d'ionisatio...
Excitation function measurements for the decay of the 2s22p 2P and 2s2p2 2D triply excited negative ...
The authors present optical excitation functions of singly excited helium states, measured by detect...
Four He- resonances with all three electrons in the n=2 shell are accessible by electron impact from...
An experimental study of the excitation of the (2p(2)) D-1 and (2s2p) P-1(o) autoionizing states of ...
Using a recently constructed high-resolution crossed-beam apparatus consisting of a hemispherical el...
The authors have studied the near-threshold excitation of autoionising states in electron-helium sca...
<p><strong>Figure 6.</strong> Structure associated with autoionization transitions in the He atom. A...
The (e, 2e) triple differential cross sections are measured for the electron-impact excitation of th...
An experimentally verifiable effect on the excitation cross section in helium due to the broad (2s2p...
We have observed a broad P-wave resonance at about 50 eV primary energy in the angular distribution ...
Abstract.(e,2e), (e, e'y) and (e, 2ey) coincidence measurements on ionization of He atom via ex...
The triply differential cross section of ionization excitation of helium, leaving the residual ion i...
A spectral approach of configuration interaction type is used to evaluate energies and widths for a ...
The trapped-electron method is applied to the excitation by electron impact of the (2p2)3P state, th...
Les états doublement excités des ions héliumoïdes du type I(2-2)+** situés sous le seuil d'ionisatio...
Excitation function measurements for the decay of the 2s22p 2P and 2s2p2 2D triply excited negative ...
The authors present optical excitation functions of singly excited helium states, measured by detect...
Four He- resonances with all three electrons in the n=2 shell are accessible by electron impact from...
An experimental study of the excitation of the (2p(2)) D-1 and (2s2p) P-1(o) autoionizing states of ...
Using a recently constructed high-resolution crossed-beam apparatus consisting of a hemispherical el...
The authors have studied the near-threshold excitation of autoionising states in electron-helium sca...
<p><strong>Figure 6.</strong> Structure associated with autoionization transitions in the He atom. A...
The (e, 2e) triple differential cross sections are measured for the electron-impact excitation of th...
An experimentally verifiable effect on the excitation cross section in helium due to the broad (2s2p...
We have observed a broad P-wave resonance at about 50 eV primary energy in the angular distribution ...
Abstract.(e,2e), (e, e'y) and (e, 2ey) coincidence measurements on ionization of He atom via ex...
The triply differential cross section of ionization excitation of helium, leaving the residual ion i...
A spectral approach of configuration interaction type is used to evaluate energies and widths for a ...
The trapped-electron method is applied to the excitation by electron impact of the (2p2)3P state, th...
Les états doublement excités des ions héliumoïdes du type I(2-2)+** situés sous le seuil d'ionisatio...