Potential energy curve for the $a^3{\Sigma }_u^{+}$ state of lithium dimer with Slater-type orbitals

Michał Lesiuk, Monika Musiał, Robert Moszynski

We report state-of-the-art ab initio calculations of the potential energy curve for the $a^3{\Sigma }_u^{+}$ state of the lithium dimer conducted to achieve spectroscopic accuracy ($<$1cm$^{…