Knowledge Bank

We have examined the region from $30,080cm-1$ to $31,270cm-1$ and discovered that the D $\mathrm{<mrow\; data-mjx-texclass="ORD">2</mrow>}\Sigma$ state observed by $Fowler1$ is actually v=1 of the $C\prime$ $\mathrm{<mrow\; data-mjx-texclass="ORD">2</mrow>}\Sigma$ $state2$ which is consistent with theoretical $calculations3,4$. 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 $34,500cm-1$ to $37,500cm-1$ and found a new $\mathrm{<mrow\; data-mjx-texclass="ORD">2</mrow>}\Sigma$ state at $n\ast =3.176$ which has been assigned as the first member of the ‘p’ $\Sigma$ series.