Speakers
Description
Neutrino oscillation experiments measure oscillation probabilities as functions of neutrino energy. The success of these experiments therefore largely depends upon their neutrino energy reconstruction accuracies. Nuclear effects and detector effects, however, can significantly affect neutrino event topologies seen by experiments in few-GeV energy region, and lead to large systematic uncertainties in energy reconstruction. In this poster, we propose a new technique of improving neutrino energy reconstruction, by using the square of reconstructed neutrino invariant mass ($M_0^{2}$) calculated from the measured 4-momentums of the final-state particles. We demonstrate that the deviation of $M_0^{2}$ from zero can be used to describe the extent to which nuclear effects and detector effects affect the reconstruction, and simple cuts on $M_0^{2}$ can improve neutrino energy resolution in an energy-independent way. Preliminary results from simulation by different event generators are presented.
