Sommaire:

To measure the last unknown $3\nu$ oscillation parameter ($\delta$), several long baseline neutrino experiments have been designed or proposed. Recently it has been shown that turning on neutral-current Non-Standard Interactions (NSI) of neutrinos with matter can induce degeneracies that may even hinder the proposed state-of-the-art DUNE long baseline experiment from measuring the value of $\delta$. We study how the result of the proposed MOMENT experiment with a baseline of 150 km and $200~{\rm MeV}<E_\nu<600~{\rm MeV}$ can help to solve the degeneracy induced by NSI and determine the true value of $\delta$. We also investigate the effects of charged-current NSIs at the source and at the detector in the simulated data for DUNE, while neglecting the neutral-current NSI at the propagation. We study the effects of NSI on the simultaneous measurements of $\theta_{23}$ and $\delta$ in DUNE. We also find the potential of DUNE to constrain the relevant charged-current NSI parameters.

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