Electron capture in H/sup +/+H/sub 2/
Journal Article
·
· Phys. Rev. A; (United States)
Electron capture in H/sup +/+H/sub 2/ collisions is studied at energies of 1.0, 2.0, and 3.0 keV in the reduced angular range tau< or =3.0 keV deg. Time-of-flight techniques are used for state identification, and the probability of electron capture to H(1s)+H/sub 2/ /sup +/( /sup 2/..sigma../sub g/ ) in an exchange collision is determined. This is shown to be the dominant exchange channel at small scattering angles. The ''summed'' exchange channels have a reduced cross section that is found to peak in the forward direction and shows no structure, while the cross section for capture to final ground-state channels shows some small structure at 3.0 keV for tau> or =1.5 keV deg. The reduced cross section, at 1.0 keV, for capture to excited states of H (with the H/sub 2/ /sup +/ in its ground state) is found to have a maximum at tau = 1 keV deg. The results are in agreement with a previously proposed model for ion-molecule charge exchange.
- Research Organization:
- Department of Physics, University of Connecticut, Storrs, Connecticut 06268
- OSTI ID:
- 6212774
- Journal Information:
- Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 30:5; ISSN PLRAA
- Country of Publication:
- United States
- Language:
- English
Similar Records
H{sup 0}+H{sub 2} and H{sup 0}+O{sub 2} collisions at low kilo-electron-volt energies
Electron capture in H{sup +} + O{sub 2} collisions at low keV energies
Single-electron capture and direct scattering in He sup 2+ +D sub 2 , O sub 2 , and N sub 2
Journal Article
·
Thu Oct 31 23:00:00 EST 1996
· Physical Review A
·
OSTI ID:388275
Electron capture in H{sup +} + O{sub 2} collisions at low keV energies
Journal Article
·
Sat May 01 00:00:00 EDT 1993
· Bulletin of the American Physical Society
·
OSTI ID:281259
Single-electron capture and direct scattering in He sup 2+ +D sub 2 , O sub 2 , and N sub 2
Journal Article
·
Sun Mar 31 23:00:00 EST 1991
· Physical Review, A; (USA)
·
OSTI ID:5847321
Related Subjects
640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
CAPTURE
CATIONS
CHARGED PARTICLES
COLLISIONS
CROSS SECTIONS
ELECTRON CAPTURE
ELEMENTS
ENERGY LEVELS
ENERGY RANGE
EXCHANGE INTERACTIONS
EXCITED STATES
HYDROGEN
HYDROGEN IONS
HYDROGEN IONS 1 PLUS
INTERACTIONS
ION COLLISIONS
ION-MOLECULE COLLISIONS
IONS
KEV RANGE
KEV RANGE 01-10
MOLECULE COLLISIONS
NONMETALS
SCATTERING
SMALL ANGLE SCATTERING
TIME-OF-FLIGHT METHOD
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
CAPTURE
CATIONS
CHARGED PARTICLES
COLLISIONS
CROSS SECTIONS
ELECTRON CAPTURE
ELEMENTS
ENERGY LEVELS
ENERGY RANGE
EXCHANGE INTERACTIONS
EXCITED STATES
HYDROGEN
HYDROGEN IONS
HYDROGEN IONS 1 PLUS
INTERACTIONS
ION COLLISIONS
ION-MOLECULE COLLISIONS
IONS
KEV RANGE
KEV RANGE 01-10
MOLECULE COLLISIONS
NONMETALS
SCATTERING
SMALL ANGLE SCATTERING
TIME-OF-FLIGHT METHOD