Nonexponential primary relaxation in supercooled salol

The nonexponential relaxation in supercooled salol near the calorimetric gl ass transition temperature is analyzed in terms of a free-energy model for the primary relaxation in glass-forming liquids. In comparing the results f rom impulsive stimulated thermal scattering and dielectric data, we estimat e the mean angle of reorientational fluctuations in the supercooled liquid for a temperature range located between the glass transition temperature an d the critical temperature of mode coupling analyses on salol. The mean reo rientational jump angle is estimated to increase smoothly from about 20 deg rees to 50 degrees with increasing temperature in the considered range. The se values are in qualitative accord to what was found in other supercooled liquids in a similar range before.