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      https://www.ias.ac.in/article/fulltext/pram/017/03/0249-0255

    • Keywords

       

      Spin-splitting; rotation vibration interaction constants; perturbations

    • Abstract

       

      The B-A system of CP molecule has been reinvestigated. The rotational structures in the (0, 0) and (1, 1) bands have been photographed in the second order of a 10.6 m grating with 25µ slit width. The molecular constants have been determined using a weighted least squares fit computer program. It is found that the spin-splitting constant in the B-state is negative and not positive as reported by previous workers. An accurate value ofα in the A-state could be determined. The present analysis also suggests that the spin-splitting constant in the ground state of CP should be positive, hence the assignment of theR1 andR2 orP1 andP2 branches in the B-X system of CP by Barwaldet al should be interchanged.

    • Author Affiliations

       

      R Tripathi1 S B Rai1 K N Upadhya1

      1. Laser and Spectroscopy Laboratory, Department of Physics, Banaras Hindu University, Varanasi - 221 005, India
    • Dates

       
  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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