Muon-neutrino-induced charged current cross section without pions: Theoretical analysis

Understand

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.