From oscillation dip to oscillation valley in atmospheric neutrino experiments

نویسندگان

چکیده

Abstract Atmospheric neutrino experiments can show the “oscillation dip” feature in data, due to their sensitivity over a large L / E range. In that distinguish between neutrinos and antineutrinos, like INO, oscillation dips be observed both these channels separately. We present dip-identification algorithm employing data-driven approach – one uses asymmetry upward-going downward-going events, binned reconstructed of muons demonstrate dip, which would confirm hypothesis. further propose, for first time, identification an valley” ( $$E_\mu $$ E μ , $$\,\cos \theta _\mu cos θ ) plane, feasible detectors ICAL having excellent muon energy direction resolutions. illustrate how this two-dimensional valley offer clear visual representation test dependence, alignment quantifying atmospheric mass-squared difference. Owing charge capability detector at we always our results using $$\mu ^{-}$$ - ^{+}$$ + events Taking into account statistical fluctuations systematic errors, varying parameters currently allowed ranges, estimate precision determined with 10-year simulated data procedure.

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ژورنال

عنوان ژورنال: European Physical Journal C

سال: 2021

ISSN: ['1434-6044', '1434-6052']

DOI: https://doi.org/10.1140/epjc/s10052-021-08946-8