Abstract
Recent phenomenological analysis of experimental data on DIS processes induced by charged leptons and neutrinos/antineutrinos beams on nuclear targets by CTEQ collaboration has confirmed the observation of CCFR and NuTeV collaborations, that weak structure function F2AWeak(x,Q2) is different from electromagnetic structure function F2AEM(x,Q2) in a nucleus like iron, specially in the region of low x and Q2. In view of this observation we have made a study of nuclear medium effects on F2AWeak(x,Q2) and F2AEM(x,Q2) for a wide range of x and Q2 using a microscopic nuclear model. We have considered Fermi motion, binding energy, nucleon correlations, mesonic contributions from pion and rho mesons and shadowing effects to incorporate nuclear medium effects. The calculations are performed in a local density approximation using a relativistic nucleon spectral function which includes nucleon correlations. The numerical results in the case of iron nucleus are compared with the experimental data.
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