Damping signatures at JUNO, a medium-baseline reactor neutrino oscillation experiment

We study damping signatures at the Jiangmen Underground Neutrino Observatory (JUNO), a medium-baseline reactor neutrino oscillation experiment. These damping signatures are motivated by various new physics models, including quantum decoherence, nu(3) decay, neutrino absorption, and wave packet decoherence. The phenomenological effects of these models can be characterized by exponential damping factors at the probability level. We assess how well JUNO can constrain these damping parameters and how to disentangle these different damping signatures at JUNO. Compared to current experimental limits, JUNO can significantly improve the limits on tau(3)/m(3) in the nu(3) decay model, the width of the neutrino wave packet sigma(x), and the intrinsic relative dispersion of neutrino momentum sigma(rel).

Automated summary

This study focuses on the investigation of damping signatures at the Jiangmen Underground Neutrino Observatory (JUNO), including various new physics models such as quantum decoherence, nu(3) decay, neutrino absorption, and wave packet decoherence. The findings suggest that JUNO can significantly improve the limits on these damping parameters compared to current experimental limits, as well as distinguish the different damping signatures in practical experiments.