  RPA correlations, spectral function and 2p2h (multi-nucleon) effects on
charged-current neutrino-nucleus reactions without emitted pions are discussed.
We pay attention to the influence of RPA and multi-nucleon mechanisms on the
MiniBooNE and MINERvA flux folded differential cross sections, the MiniBooNE
flux unfolded total cross section and the neutrino energy reconstruction.
