Collisional quenching of O(1D) by O(3P)

Details Collisional quenching of O(1D) by O(3P) Collisional quenching of O(1D) by O(3P)

May 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990p%26ss...38..647y&link_type=abstract

Planetary and Space Science (ISSN 0032-0633), vol. 38, May 1990, p. 647-652.

Physics

Atomic Physics

19

Atmospheric Physics, Atomic Collisions, Ground State, Metastable Atoms, Oxygen, Quenching (Atomic Physics), Adiabatic Conditions, Scattering Cross Sections

Scientific paper

Metastable O(1D) atoms may be quenched in collisions with ground state O(3P) atoms by transitions in the avoided crossing regions of the three lowest 3Pi(g) states of O2 of which the lowest separates to O(3P) + O(3P) and the two upper to O(3P) + O(1D). Quantal calculations of the adiabatic potential energy curves of the 3Pi(g) states are carried out with particular attention to an avoided crossing region in the lowest two states around a nuclear separation of 3.2a(0). Diabatic potential matrix elements are constructed from the adiabatic curves by imposing the requirement that they be smooth everywhere. A multi-state diabatic formulation is used to describe the scattering and the cross-sections for the collision-induced quenching of O(1D) atoms are calculated.

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