Towards a microscopic understanding of nuclear structure functions

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Abstract
It has recently been shown that the twist-two valence quark distributions calculated in the MIT bag model are in reasonable agreement with world data. Furthermore, several authors have constructed mean-field theories which reproduce the saturation properties of nuclear matter in terms of a mean-field theory of nonoverlapping bags, self-consistently bound by scalar and vector meson exchange. By using a local density approximation we combine these developments to microscopically investigate the structure functions of finite nuclei. Not only do we obtain a semiquantitative description of the data (the so-called European Muon Collaboration effect) but we also show that the conventional treatment based on nucleon binding is quantitatively unreliable.