Nova and T2K find non unitary mixing 3 sigma - Excess Neutrinos more than expected from oscillations - Neutrino Decay or Neutrino Pair Production

In https://www.arxiv.org/pdf/2501.00146 Yu et al Analysis results from the 295 Kilometer far detector from J-PARC, T2k, and the 810 Kilometer far detector at Fermilab both with Gev Muon Neutrino, both seem to show excess electron neutrinos more than can be expect from Unitary (Preversing Particle Number) Oscillations of Neutrinos, the Nova detector show this much more strongly than T2k. Could Muon Neutinos be pair producing electron neutinos by scattering along the way, v_mu->v_mu + v_e + v-bar_e? As our axial force might do. The amount of extra electron neutrinos is 6% averaged over both experiments.