Electronic excitation and dissociation of O/sub 2/ and S/sub 2/ by electron impact

Journal Article · Sat Nov 30 23:00:00 EST 1985 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.32.3366· OSTI ID:5013446

Garrett, B C; Redmon, L T; McCurdy, C W; Redmon, M J

The impact-parameter method is used to calculate integral cross sections for electronic excitation and dissociation of O/sub 2/ and S/sub 2/ by electron impact. For both molecules, excitations to bound and dissociative states are considered for transitions from the ground electronic state (X /sup 3/..sigma../sub g//sup -/) to the two lowest states of /sup 3/..sigma../sub u//sup -/ symmetry (labeled B and E for O/sub 2/ and B and 2 for S/sub 2/) and the lowest state of /sup 3/Pi/sub u/ symmetry. The dependence of the cross sections upon initial vibrational and rotational states is studied for low collision energies (threshold to 25 eV). For some transitions a change in initial vibrational state can have a significant effect upon the cross sections, but, in general, the effect of changing the initial rotational state is small.

• Research Organization: Chemical Dynamics Corporation, 1550 West Henderson Road, Columbus, Ohio 43220
• OSTI ID: 5013446
• Journal Information: Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 32:6; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
COLLISIONS
CROSS SECTIONS
DISSOCIATION
ELECTRON COLLISIONS
ELECTRON-MOLECULE COLLISIONS
ELEMENTS
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EXCITATION
EXCITED STATES
IMPACT PARAMETER
INTEGRAL CROSS SECTIONS
MOLECULE COLLISIONS
NONMETALS
OXYGEN
ROTATIONAL STATES
SULFUR
VIBRATIONAL STATES