Speaker
Description
Lorentz invariance is a well-known fundamental symmetry, serving as the pillar of widely accepted theories such as quantum field theory and Einstein’s theory of relativity, and has deep connections with the charge, parity, and time-reversal symmetry. The search for Lorentz invariance violation (LIV) is getting more attention in recent years due to many theories of beyond standard model (Stochastic space-time foam, quantum loop gravity, string theory, etc.) predicting LIV in high-energy physics.
We adopt the non-isotropic model to study the LIV parameters. The key feature of the non-isotropic model is sidereal variations in the oscillation probabilities arising from the breakdown of rotational symmetry and CPT asymmetries comparing neutrino and antineutrino modes. The Sidereal effect occurs by the direction-dependency of neutrino state evolution during propagation. In this work, we compare the impact of LIV in different long-baseline neutrino experiments. We have also investigated the effect of the non-isotropic LIV parameter on appearance and disappearance channels in time-independent analysis.
We present the new constraint in LIV parameters using the event information for the Numu disappearance channel and the Nue appearance channel. The sensitivity of the NOνA and T2K experiment for the LIV parameters are also projected.
| Session | Beyond the Standard Model |
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