Q2-dependence of semi-inclusive electron-nucleus scattering and nucleon-nucleon correlations

We analize semi-inclusive electron-nucleus processes e+A→e′+h+X at moderate Q2 and energy transfer ν. Our results show that nucleons bound in the nuclear medium are distributed according to a function fA that reduces to the standard light-cone distribution in the Bjorken limit and exhibits a sizeable Q2-dependence at lower Q2, particularly when Q2∼ν2. This distribution function is employed to calculate the cross section of the reaction e+A→e′+p+X, in the kinematical region in which the detected proton is emitted backward in the target rest frame.