Author/Authors :
Grochola، نويسنده , , A. and Szczepkowski، نويسنده , , Ties J. and Jastrzebski، نويسنده , , W. and Kowalczyk، نويسنده , , P.، نويسنده ,
Abstract :
The A 1 Σ + ← X 1 Σ + band system in the 39K7Li molecule is investigated by the polarisation labelling spectroscopy technique. The excited state is characterised by a set of Dunham coefficients describing rovibrational levels v = 0 – 34 , J = 9 – 73 and the corresponding potential energy curve is constructed with the Rydberg–Klein–Rees method. The main equilibrium constants are T e = 12097.11 ( 3 ) cm - 1 , (with respect to the minimum of the electronic ground state), ω e = 137.0821 ( 131 ) cm - 1 , R e = 3.9466 ( 3 ) Å .
