Probing Lorentz and CPT Violation in a Magnetized Iron Detector using Atmospheric Neutrinos

Abstract

We study the sensitivity of the Iron Calorimeter (ICAL) at the India-Based Neutrino Observatory (INO) to Lorentz and CPT violation in the neutrino sector. Its ability to identify the charge of muons in addition to their direction and energy makes ICAL a useful tool in putting constraints on these fundamental symmetries. Using resolution, efficiencies, errors and uncertainties obtained from ICAL detector simulations, we determine sensitivities to $\delta b_{31}$, which parametizes the violations in the muon neutrino sector. We carry out calculations for three generic cases representing mixing in the CPT violating part of the hamiltonian, specifically, when the mixing is 1) small, 2) large, 3) the same as that in the PMNS matrix. We find that for both types of hierarchy, ICAL at INO should be sensitive to $\delta b_{31}$ $\gtrsim$ $4\times 10^{-23}$ GeV at 99% C.L. for 500 kt-yr exposure, unless the mixing in the CPT violation sector is small.

14 pages, 5 figures

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Cited by in corpus (27)

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• Sensitivity to neutrino decay with atmospheric neutrinos at INO
• Testing non-standard neutrino matter interactions in atmospheric neutrino propagation
• Looking for Lorentz invariance violation (LIV) in the latest long baseline accelerator neutrino oscillation data
• Extrinsic and Intrinsic CPT Asymmetries in Neutrino Oscillations
• Can Lorentz Invariance Violation affect the Sensitivity of Deep Underground Neutrino Experiment?
• Exploring the effect of Lorentz invariance violation with the currently running long-baseline experiments
• Can INO be Sensitive to Flavor-Dependent Long-Range Forces?
• Phenomenological Effects of CPT and Lorentz Invariance Violation in Particle and Astroparticle Physics
• A review of the tension between the T2K and NO$\nu$A appearance data and hints to new physics
• Probing Lorentz Invariance Violation with Atmospheric Neutrinos at INO-ICAL
• Search for the sterile neutrino mixing with the ICAL detector at INO
• Investigating Lorentz Violation with the long baseline experiment P2O
• Search for the differences in Atmospheric Neutrinos and Antineutrinos oscillation parameters at the INO-ICAL Experiment
• Prospects of Indirect Searches for Dark Matter at INO
• Constraining Lorentz Invariance Violation with Next-Generation Long-Baseline Experiments
• Exploring new physics with DUNE high energy flux: the case of Lorentz Invariance Violation, Large Extra Dimensions and Long Range Forces
• Constraining CPT violation with Hyper-Kamiokande and ESSnuSB
• Indirect searches of Galactic diffuse dark matter in INO-MagICAL detector
• Model-independent test for CPT violation using long-baseline and atmospheric neutrino experiments
• Independent measurement of Muon neutrino and anti-neutrino oscillations at the INO-ICAL Experiment
• On testing violations of Bose and $CPT$ symmetries via Dalitz plots and Dalitz `prism'
• Checking T and CPT violation with sterile neutrino