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THE RYDBERG STATES OF CaF (another look at the lowest states)
Nicholas C. Harris, Christopher M. Gittins, James E. J. Murphy, Robert W. Field
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Abstract
We have examined the region from $30,080 cm^{-1}$ to $31,270 cm^{-1}$ and discovered that the D $^{2}\\Sigma$ state observed by $Fowler^{1}$ is actually v=1 of the $C^{\\prime}$ $^{2}\\Sigma$ $state^{2}$ which is consistent with theoretical $calculations^{3,4}$. With this new information, we have rearranged the CaF Rydberg series described by Murphy $et. al.^{5}$. The $C^{\\prime}$ state is now assigned as the second member of the ‘s’ $\\Sigma$ series. We also examined the region from $34,500 cm^{-1}$ to $37,500 cm^{-1}$ and found a new $^{2}\\Sigma$ state at $n^{*}=3.176$ which has been assigned as the first member of the ‘p’ $\\Sigma$ series.