THE $B{^{3}}\Sigma^{-}_{u} \leftarrow b {^{1}}\Sigma^{+}_{g}$ TRANSITION OF MOLECULAR OXYGEN

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Title: THE $B{^{3}}\Sigma^{-}_{u} \leftarrow b {^{1}}\Sigma^{+}_{g}$ TRANSITION OF MOLECULAR OXYGEN
Creators: Lewis, B. R.; Gibson, S. T.; Slanger, T. G.; Huestis, D. L.
Issue Date: 1999
Publisher: Ohio State University
Abstract: The origin of the intensity of the $B{^{3}}\Sigma^{-}_{u} \leftarrow b {^{1}}\Sigma^{+}_{g}$ transition of molecular oxygen, first observed recently by Eppink et al. [J. Chem. Phys. 108, 1305 (1998).], is discussed. It is shown that the $B \leftarrow b$ transition borrows its intensity principally from the dipole-allowed $B \leftarrow X$ transition, through spin-orbit mixing between the $X{^{3}}\Sigma_{g}^{+}$ and $b{^{1}}\Sigma^{+}_{g}$ states. Estimated continuum photoabsorption cross sections and discrete oscillator strengths for the $B \leftarrow b$ system are presented.
Description: Author Institution: Research School of Physical Sciences and Engineering, The Australian National University; Molecular Physics Laboratory, SRI International
Other Identifiers: 1999-RI-02
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