Occupancy and hybridization of theflevel in Ce compounds

We compare experimental and theoretical core-level and valence photoemission, bremsstrahlung isochromat, and $3d\to 4f$ x-ray absoprtion spectra as well as susceptibility data for Ce compounds. Using the Anderson impurity model and one set of parameters, we obtain an essentially consistend description of these experiments. We deduce new values for the occupancy of the $f$ level and its coupling to the conduction states. These values are substantially larger than the traditional ones.