Consequences of $ \mu-\tau $ Reflection Symmetry at DUNE

We consider minimal type-I seesaw framework to realize $\mu-\tau$ reflection symmetry in the low-energy neutrino mass matrix, $M_{\nu}$. Considering DUNE experiment, we scrutinize its potential to measure the precision of 2-3 mixing angle, $\theta_{23}$ and the Dirac CP-phase, $\delta$ for the given symmetry. Later, we examine the precision of these two parameters considering NuFit-3.2 data as one of the important true points. To study the low-energy phenomenology, we further discuss various breaking patterns of such an exact symmetry. Moreover, for each breaking scenario we perform the capability test of DUNE for the determination of $\theta_{23}$ and to establish the phenomenon of CP violation considering the true benchmark point arising from the breaking of $\mu-\tau$ reflection symmetry. We also make remarks on the potential of DUNE to rule out maximal CP-violation or CP-conservation hypothesis at a certain confidence level for different scenarios.