Acta Physica Hungarica

, Volume 55, Issue 1–4, pp 27–32 | Cite as

Rotational intensities in doublet transitions of a diatomic molecule

  • T. K. Balasubramanian
  • A. S. P. Rao
  • R. D’Souza
  • N. A. Narasimham
Atomic and Molecular Physics


Rigorous expressions for the rotational term values and eigenfunctions of a diatomic molecule in doublet electronic state are rederived, taking due account of the effect of centrifugal distortion on the spin multiplets. The eigenfunctions are used to obtain expressions for the rotational line strengths appropriate for2Σ -2Π (int) transition. The possibility of determining from intensity measurements, the spin-rotation parameter γ independent ofA D , the centrifugal distortion parameter of the spin-orbit coupling constantA, is pointed out.


Diatomic Molecule Line Strength Centrifugal Distortion Rotational Term Spin Multiplet 
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Copyright information

© with the authors 1984

Authors and Affiliations

  • T. K. Balasubramanian
    • 1
  • A. S. P. Rao
    • 1
  • R. D’Souza
    • 1
  • N. A. Narasimham
    • 1
  1. 1.Spectroscopy DivisionBhabha Atomic Research CentreTrombayIndia

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