Elastic and rotational excitation of the oxygen molecule by intermediate-energy electrons
The Glauber-type eikonal amplitude for a fixed molecular orientation is used in the framework of adiabatic approximation to compute pure elastic excitation (J = 1..-->..J' = 1), rotational excitation (J = 1..-->..J' = 3), and orientationally averaged elastic cross sections of the oxygen molecule in its ground electronic and vibrational states with the use of electrons as incident particles. Both differential and integral cross sections are reported at electron energies 20--200 eV. The effect of target polarization is included in the effective electron-molecule potential used, but that of electron exchange is neglected. The results are compared with the available experimental data and theoretical calculations of other workers. A comparative study of the molecules H/sub 2/, N/sub 2/, and O/sub 2/ as targets is made.
- Research Organization:
- Department of Physics, Calcutta University, 92 Acharyya Prafulla Chandra Road, Calcutta 700009, India
- OSTI ID:
- 5675973
- Journal Information:
- Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 28:2; ISSN PLRAA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ADIABATIC APPROXIMATION
COLLISIONS
CROSS SECTIONS
EIKONAL APPROXIMATION
ELASTIC SCATTERING
ELECTRON COLLISIONS
ELECTRON-MOLECULE COLLISIONS
ELEMENTS
ENERGY LEVELS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EV RANGE
EV RANGE 10-100
EV RANGE 100-1000
EXCITATION
EXCITED STATES
HYDROGEN
MOLECULE COLLISIONS
NITROGEN
NONMETALS
OXYGEN
ROTATIONAL STATES
SCATTERING