Deep inelastic electron scattering from Iron 56 and other tails

Deep inelastic electron scattering data on ⁵⁶Fe are presented for angles of 160°, 140° and 90° and at incident energies ranging from 372 MeV to 100 MeV. The elastic radiative tail is calculated using the exact one photon formulism of Mo and Tsai. Radiative contributions from real target bremsstrahlung and from the continuum are included. The data were separated into longitudinal, SL (q, ⍵), and transverse, ST(q, ⍵), response functions. A Coulomb sum rule for constant q is formulated and compared with an independent particle model (Fermi gas). Short range correlations, finite size effects, effective momentum transfer and final state interactions are considered in an attempt to explain the observed discrepancies.