Nonrelativistic energy of tritium-containing hydrogen molecule isotopologues

Abstract

The nonrelativistic energy of low lying rovibrational levels of HT, DT, and \ is determined to an absolute accuracy of 10-7-10-8 cm-1 using the variational method with the four-body nonadiabatic James-Coolidge functions. The new results increase the accuracy of the nonrelativistic component of the energy levels by several orders of magnitude. As a consequence, the total transition energies are improved by at least an order of magnitude.

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