On the non-existence of resonances above the ionization threshold in positron-hydrogen scattering

1995 ◽  
Vol 28 (16) ◽  
pp. L519-L523 ◽  
Author(s):  
Yan Zhou ◽  
C D Lin
Keyword(s):  
Ionization Threshold

METASTABLE Ar+ IONS NEAR THE Ar++ THRESHOLD

1963 ◽  
Vol 41 (10) ◽  
pp. 1535-1541 ◽  
Author(s):  
J. Wm. McGowan ◽  
Larkin Kerwin
Keyword(s):  
Mass Spectrum ◽  
Exchange Reaction ◽  
Cross Section ◽  
Charge Exchange ◽  
Metastable States ◽  
Ionization Threshold ◽  
Charge Exchange Reaction

When applied to the mass spectrum of argon, the techniques of Aston banding and I.P. curve comparison reveal the presence of metastable states of Ar+ near the ionization threshold of Ar++. These metastable states make possible the collision charge-exchange reaction 10/20 with an over-all cross section at 1 kev of a least 2.5 Å2.

Photoionization of laser-excited caesium atoms above the 4d ionization threshold

2010 ◽  
Vol 43 (21) ◽  
pp. 215001 ◽  
Author(s):  
Angelica Moise ◽  
Michele Alagia ◽  
Lorenzo Avaldi ◽  
Vitaliy Feyer ◽  
Kevin C Prince ◽  
...  
Keyword(s):  
Ionization Threshold

Multiphoton absorption by alkali-metal atoms above the ionization threshold

1986 ◽  
Vol 33 (6) ◽  
pp. 4444-4445 ◽  
Author(s):  
Mark Edwards ◽  
X. Tang ◽  
P. Lambropoulos ◽  
Robin Shakeshaft
Keyword(s):  
Alkali Metal ◽  
Ionization Threshold ◽  
Multiphoton Absorption ◽  
Metal Atoms

scholarly journals Bound-Electron Nonlinearity Beyond the Ionization Threshold

2018 ◽  
Vol 120 (18) ◽  
Author(s):  
J. K. Wahlstrand ◽  
S. Zahedpour ◽  
A. Bahl ◽  
M. Kolesik ◽  
H. M. Milchberg
Keyword(s):  
Ionization Threshold ◽  
Bound Electron

scholarly journals Deep-core photoionization of krypton atoms below and above the 1s ionization threshold

2020 ◽  
Vol 101 (5) ◽  
Author(s):  
N. Boudjemia ◽  
K. Jänkälä ◽  
R. Püttner ◽  
T. Gejo ◽  
L. Journel ◽  
...  
Keyword(s):  
Ionization Threshold

Ionization threshold energies for metal clusters

1986 ◽  
Author(s):  
D. M. Cox ◽  
R. L. Whetten ◽  
M. R. Zakin ◽  
D. J. Trevor ◽  
K. C. Reichmann ◽  
...  
Keyword(s):  
Metal Clusters ◽  
Ionization Threshold ◽  
Threshold Energies

Laser-induced Compton scattering from a bound electron

1992 ◽  
Vol 70 (1) ◽  
pp. 72-77 ◽  
Author(s):  
F. Ehlotzky
Keyword(s):  
Angular Distribution ◽  
Compton Scattering ◽  
Harmonic Generation ◽  
Cross Sections ◽  
Laser Field ◽  
Multiphoton Ionization ◽  
Ionization Threshold ◽  
Powerful Laser ◽  
Bound Electrons ◽  
Bound Electron

We investigate nonrelativistically Compton scattering by an electron bound in hydrogen in a powerful laser field. The corresponding nonlinear rates and cross sections are evaluated in a Keldysh-type of approximation and compared with the rates and cross sections of multiphoton ionization and harmonic generation. We find that multiphoton ionization overshadows Compton scattering by many orders of magnitude, however, Compton scattering may well compete with harmonic generation above the ionization threshold, since, in particular, both processes have the same angular distribution and only odd harmonics can be created by bound electrons, while in bound-free Compton scattering all harmonics will be generated.

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