Binding energies of the ground triplet state a3Σu+ of Rb2 and Cs2 in terms of the generalized Le Roy–Bernstein near-dissociation expansion

摘要: Formulae of Le Roy–Bernstein near-dissociation theory are derived in a general isotope–invariant form, applicable to any term the rotational expansion diatomic ro-vibrational value. It is proposed use generalized describe binding energies (ro-vibrational values) ground triplet state a3Σu+ alkali metal dimers. The parameters this description determined for Rb2 and Cs2 molecules. This approach gives recipe calculate whole variety with characteristic accuracies from ∼1 × 10−3 1 10−2 cm−1 using relatively simple algebraic equation.