2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/81932The role of the pion in the parity-conserving and parity-violating quasi-elastic nuclear response functions is analyzed within a relativistic model which fulfills gauge invariance.14 pages, 4 figures, Proceedings of the Varenna School "From Nuclei and Thier Constituents to Stars", August 2002Nuclear TheoryHigh Energy Physics - Phenomenologytext