  We have investigated the valence transition in the extended periodic Anderson
model (EPAM) within the framework of dynamical mean field theory. Previous
theoretical studies have indicated the presence of this transition in parameter
ranges that are experimentally inaccessible. In this work, we show that,
inclusion of dynamics beyond static mean-field brings the valence transition in
physically relevant regimes. We show the strong dependence of the
quasiparticle-weight scale across the sharp valence crossover. The density of
states also exhibit concomitant large scale spectral weight transfers, which
can be observed in experiments.
