Quantum decoherence effects in neutrino oscillations at DUNE

In this work, we analyze quantum decoherence in neutrino oscillations considering the open quantum system framework and oscillations through matter for three-neutrino families. Taking the Deep Underground Neutrino Experiment as a case study, we performed sensitivity analyses for two neutrino flux configurations, finding sensitivity limits for the decoherence parameters. We also offer a physical interpretation for a new peak which arises at the νₑ appearance probability with decoherence. The sensitivity limits found for the decoherence parameters are Γ₂₁≤1.2×10^-23 GeV and Γ₃₂≤7.7×10^-25 GeV at 90% C.L.