Alladi Ramakrishnan Hall

Exploring Lorentz Invariance Violating (LIV) parameters at DUNE and its impact on octant studies.

Mehedi Masud

IFIC, Valencia

The Deep Underground Neutrino Experiment (DUNE) is a promising international effort in neutrino physics and aims to discover leptonic CP violation and tackle the mass hierarchy and octant degeneracy problem. This experiment will have the ability to probe sub-dominant effects introduced by new physics such as CPT and Lorentz violating interactions, - among others. In this work, we discuss about how DUNE can constrain these Lorentz violating parameters, - particularly in the $e\mu$ and the $e\tau$ sector, - which are most relevant for DUNE. We also discuss about the possible correlations (among themselves and also with the standard oscillation parameters $\delta$ and $\theta_{23}$) related to these new physics parameters, - by analysing the new allowed regions of sensitivity they introduce. Finally we illustrate how the presence of these Lorentz violating parameters can potentially spoil the octant and CPV related studies at DUNE. This talk is partly based on Phys.Lett. B788 (2019) 308-315.