Renormalization group evolution induced breaking of μ−τ reflection symmetry in MSSM with effects of variation of tanβ

In this paper, we study the renormalization group (RG) evolution induced breaking of [Formula: see text]–[Formula: see text] reflection symmetry in the Minimal Supersymmetric Standard Model (MSSM), with a special focus on the effects of varying [Formula: see text], the ratio of MSSM Higgs vacuum expectation values. By starting from an exact [Formula: see text]–[Formula: see text] reflection symmetry imposed at a high flavor symmetry scale [Formula: see text], we run the complete set of coupled RGEs for neutrino masses, mixing angles and CP-violating phases down to the electroweak scale, imparting perturbation to the symmetry. We consider a specific value of the SUSY breaking scale, [Formula: see text] TeV during the run. By choosing suitable free parameters at the high-energy scale, we reproduce the low-energy experimental constraints on neutrino observables consistent with [Formula: see text] global analysis data. We then examine how the breaking of [Formula: see text]–[Formula: see text] reflection symmetry is influenced by different values of [Formula: see text], considering three benchmark choices. In addition, the analysis is performed for both normal ordering (NO) and inverted ordering (IO) of neutrino masses to highlight potential differences in their RG running behavior.