Add to ORKGWe have observed a broad P-wave resonance at about 50 eV primary energy in the angular distribution of electrons scattered after excitation of the 23S state of helium. The resonance has a width of about 15 eV and affects the differential excitation cross section by more than 3 orders of magnitude. It is suggested that this resonance is associated with the temporary formation of triply excited states of the negative helium ion
Results of a study of the inelastic energy loss spectra induced by the impact of protons on gaseous ...
An experimentally verifiable effect on the excitation cross section in helium due to the broad (2s2p...
Transient negative ions (resonances) formed during the collision of an electron with an atom or mole...
We have observed a broad P-wave resonance at about 50 eV primary energy in the angular distribution ...
Four He- resonances with all three electrons in the n=2 shell are accessible by electron impact from...
We have investigated helium (1s3d) 3D → (1s2p) 3P (588 nm) fluorescence produced by electron impact ...
The authors present optical excitation functions of singly excited helium states, measured by detect...
Angular differential cross sections for the proton-impact excitation of ground-state helium (11S) to...
An experimental study of the excitation of the (2p(2)) D-1 and (2s2p) P-1(o) autoionizing states of ...
This dissertation describes two experiments which measured: (1) the relative differential cross sect...
The formation and decay of the two lowest-lying, triply excited He- resonances in the autoionizing r...
Double ionization of the helium atom by slow electron impact (E0=106 eV) is studied in a kinematica...
By solving the two-active-electron time-dependent Schrödinger equation in an intense, ultrashort las...
This thesis describes an experiment that measures a relative differential cross section for the exci...
The authors have measured the angular distribution of electrons ejected by the He**(2s2)1S autoionis...
Results of a study of the inelastic energy loss spectra induced by the impact of protons on gaseous ...
An experimentally verifiable effect on the excitation cross section in helium due to the broad (2s2p...
Transient negative ions (resonances) formed during the collision of an electron with an atom or mole...
We have observed a broad P-wave resonance at about 50 eV primary energy in the angular distribution ...
Four He- resonances with all three electrons in the n=2 shell are accessible by electron impact from...
We have investigated helium (1s3d) 3D → (1s2p) 3P (588 nm) fluorescence produced by electron impact ...
The authors present optical excitation functions of singly excited helium states, measured by detect...
Angular differential cross sections for the proton-impact excitation of ground-state helium (11S) to...
An experimental study of the excitation of the (2p(2)) D-1 and (2s2p) P-1(o) autoionizing states of ...
This dissertation describes two experiments which measured: (1) the relative differential cross sect...
The formation and decay of the two lowest-lying, triply excited He- resonances in the autoionizing r...
Double ionization of the helium atom by slow electron impact (E0=106 eV) is studied in a kinematica...
By solving the two-active-electron time-dependent Schrödinger equation in an intense, ultrashort las...
This thesis describes an experiment that measures a relative differential cross section for the exci...
The authors have measured the angular distribution of electrons ejected by the He**(2s2)1S autoionis...
Results of a study of the inelastic energy loss spectra induced by the impact of protons on gaseous ...
An experimentally verifiable effect on the excitation cross section in helium due to the broad (2s2p...
Transient negative ions (resonances) formed during the collision of an electron with an atom or mole...