Non-Standard Interactions of Supernova Neutrinos and Mass Ordering Ambiguity at DUNE

Abstract

We show that non-standard neutrino interactions (NSI) can notably modify the pattern of resonant flavor conversion of neutrinos within supernovae and significantly impact the neutronization burst signal in forthcoming experiments such as the Deep Underground Neutrino Experiment (DUNE). The presence of NSI can invert the energy levels of neutrino matter eigenstates and even induce a new resonance in the inner parts close to the proto-neutron star. We demonstrate how DUNE can use these new configurations of energy levels to have sensitivity to NSIs down to $\mathcal{O}(0.1)$. We also elucidate how the effect may result in a puzzling confusion of normal and inverted mass orderings by highlighting the emergence or vanishing of the neutronization peak, which distinguishes between the two mass orderings. Potential implications are analyzed thoroughly.

arXiv comment7 pages + references, 6 figures

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Cited by in corpus (2)

• ${\delta }_{CP}$-free constraints on NSI parameters ${\epsilon }_{e\mu }$ and ${\epsilon }_{e\tau }$ using high-purity ${\nu }_{\mu }$ CC events at IceCube DeepCore
• Oscillation-Independent Probes of Neutrino Non-Standard Interactions from Supernovae