Search for the differences in Atmospheric Neutrinos and Antineutrinos oscillation parameters at the INO-ICAL Experiment

Understand

In this paper, we present a study to measure the differences between the atmospheric neutrino and anti-neutrino oscillations in the Iron-Calorimeter detector at the India-based Neutrino Observatory experiment.

• Charged Current $\nu_{\mu}$ and $\overline{\nu}_{\mu}$ interactions with the detector under the influence of earth matter effect have been simulated for ten years of exposure.
• The observed $\nu_{\mu}$ and $\overline{\nu}_{\mu}$ events spectrum are separately binned into direction and energy bins, and a $\chi^{2}$ is minimised with respect to each bin to extract the oscillation parameters for $\nu_{\mu}$ and $\overline{\nu}_{\mu}$ separately.
• We then present the ICAL sensitivity to confirm a non-zero value of the difference in atmospheric mass squared of neutrino and anti-neutrino i.e.