Ab initio relativistic treatment of the intercombination $a^3\Pi -X^1{\Sigma }^{+}$ Cameron system of the CO molecule

Nikolai S. Mosyagin, Alexander V. Oleynichenko, Andrei Zaitsevskii +3

The intercombination $a^3\Pi -X^1{\Sigma }^{+}$ Cameron system of carbon monoxide has been computationally studied in the framework of multi-reference Fock space coupled cluster method with th…