Determination of Data Quality for the NOvA experiment

NOvA is a long-baseline neutrino oscillation experiment with two functionally identical detectors that uses Fermilab's NuMI beam. NOvA is designed to measure the neutrino mixing angles and to discover the neutrino mass hierarchy and probe leptonic CP violation by measuring the oscillation of muon (anti)neutrinos to electron (anti)neutrinos between the Near Detector at Fermilab and the Far Detector in Ash River, Minnesota. It is essential to have accurate and automated detector and data monitoring systems to ensure that issues which could affect data quality are identified and to remove affected data from the physics analysis data set. To this end, NOvA uses a combination of online and offline methods to monitor beam quality and detector stability and to determine the impact on recorded data. This poster will explain the set of techniques for determining good data and calculating the data-taking efficiency.