PoS - Proceedings of Science
Volume 390 - 40th International Conference on High Energy physics (ICHEP2020) - Parallel: Neutrino Physics
Neutrino mass ordering obfuscated by the NSI
S.S. Chatterjee,* F. Capozzi, A. Palazzo
*corresponding author
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Pre-published on: December 31, 2020
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The current data of the two long-baseline experiments T2K and NO$\nu$A indicate a $2.4\sigma$ preference of normal neutrino mass ordering over the inverted mass ordering in case of standard $3\nu$ analysis. However such a claim does not remain unaltered in presence of neutrino non-standard interactions (NSI) involving $e-\tau$ sector. We find that the sensitivity towards the neutrino mass ordering gets completely lost. So a rubust claim of the neutrino mass ordering requires a careful consideration of the impact of NSI.
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