  We calculate the charged current cross sections obtained at the T2K near
detector for $\nu_\mu$-induced events without pions in the final state. The
method used is quantum-kinetic transport theory. Results are shown first, as a
benchmark, for electron inclusive cross sections on $^{12}$C and $^{16}$O to be
followed with a detailed comparison with the data measured by the T2K
collaboration on C$_8$H$_8$ and H$_2$O targets. The contribution of 2p2h
processes is found to be relevant mostly for backwards angles; their
theoretical uncertainties are within the experimental uncertainties. Particular
emphasis is then put on a discussion of events in which pions are first
created, but then reabsorbed. Their contribution is found to be essential at
forward angles.
