Experimental data analysis on xenon above the critical temperature from nonlinear renormalization group

Abstract

We analyse the scattered light and specific heat data on xenon using the recent nonlinear renormalization group calculations obtained in the ϕ4 theory in three dimensions. The minimal set of free parameters that the theory imposes is sufficient to describe these data even for the case where, in the usual analysis, many correction terms to scaling are needed. We show that it will be very difficult to determine the influence of transients neglected in the ϕ4 model. Furthermore, we obtain the reduction to dimensionless experimental quantities in agreement with two scale factor universality. We show that the asymptotic amplitudes of the singular quantities are also related to the amplitudes of the first confluent corrections according to the critical path considered.