  Recently, dynamical mean field theory calculations have shown that kinks
emerge in the real part of the self energy of strongly correlated metals close
to the Fermi level. This gives rise to a similar behavior in the quasi-particle
dispersion relation as well as in the electronic specific heat. Since
f-electron systems are even more strongly correlated than the -hitherto
studied- d-electron systems we apply the dynamical mean field approach with the
numerical renormalization group method as impurity solver to study whether
there are kinks in the periodic Anderson model.
