Neutrino Tridents in the NOvA Near Detector

NOvA is a long-baseline accelerator-based neutrino oscillation experiment that uses the NuMI beam from Fermilab to measure electron-neutrino appearance and muon-neutrino disappearance using a near detector, located at Fermilab, and a far detector, located in Ash River, Minnesota. The high flux of muon neutrinos at the near detector allows for measurement of rare processes such as neutrino trident scattering, a rare Standard Model process in which a charged-lepton pair is produced via neutrino-nucleus scattering. Differences in event topology between the dimuon, the trident channel where the outgoing leptons are a muon and antimuon, and other muon neutrino charged current interactions necessitate developing reconstruction algorithms specific to these events. In this talk, we will discuss the estimated event rate for dimuons in the NOvA Near Detector and techniques developed to reconstruct and identify dimuons.