Abstract
The authors report results of the experimental study of excitation transfer between Zeeman sublevels of the 6P13 state of an even isotope of mercury in magnetic fields up to 80 kG, obtained by monitoring the transition from sudden to partially adiabatic collisions. The results are shown to be in good agreement with theoretical evaluations based on a numerical solution of the relaxation problem or on a correlation-function description using a R3 dipole-dipole interaction.