MESONIC AND BINDING CONTRIBUTIONS TO THE EMC EFFECT IN A RELATIVISTICMANY-BODY APPROACH

We revise the conventional nuclear effects of Fermi motion, binding an d pionic effects in deep inelastic lepton scattering using a relativis tic formalism for an interacting Fermi sea and the local density appro ximation to translate results from nuclear matter to finite nuclei. In addition we also consider effects from rho-meson renormalization in t he nucleus. The use of nucleon Green functions in terms of their spect ral functions offers a precise way to account for Fermi motion and bin ding. On the other hand the use of many-body Feynman diagrams in a rel ativistic framework allows one to avoid using prescriptions given in t he Fast to introduce relativistic corrections in a nonrelativistic for malism. We show that with realistic nucleon spectral functions and mes on nucleus self-energies one can get a reasonable description of the E MC effect for x >0.15, outside the shadowing region.