Physics – Nuclear Physics – Nuclear Theory
Scientific paper
1995-10-31
Nucl.Phys. A611 (1996) 484-513
Physics
Nuclear Physics
Nuclear Theory
31 pages, LaTeX, 11 PostScript figures, final version to appear in Nuclear Physics A
Scientific paper
10.1016/S0375-9474(96)00289-8
We revise the conventional nuclear effects of Fermi motion, binding and pionic effects in deep inelastic lepton scattering using a relativistic formalism for an interacting Fermi sea and the local density approximation to translate results from nuclear matter to finite nuclei. In addition we also consider effects from rho-meson renormalization in the nucleus. The use of nucleon Green's functions in terms of their spectral functions offers a precise way to account for Fermi motion and binding. On the other hand the use of many body Feynman diagrams in a relativistic framework allows one to avoid using prescriptions given in the past to introduce relativistic corrections in a non relativistic formalism. We show that with realistic nucleon spectral functions and meson nucleus selfenergies one can get a reasonable description of the EMC effect for x > 0.15, outside the shadowing region.
de Cordoba Pedro Fernandez
Marco Enric
Oset Eulogio
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