In such kind of schematic of Feynman diagrams involved in neutrino scattering with matter at neutrino oscillation experiments : (page labelled 54 = page 100 of the pdf file : http://inspirehep.net/record/1725915/files/fermilab-thesis-2018-30.pdf )
*What does the $\nu_\mu$ interact with : the neutron ? The muon ? Or the proton ?
*Same question for the diagram for $\nu_e$ : does it interact with the electron, the proton or the neutron ?