Browsing by Author "Raddatz, Nicholas"

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    Measurement of Muon Neutrino Disappearance with Non-Fiducial Interactions in the NOvA Experiment
    (2016-04) Raddatz, Nicholas
    The NuMI (Neutrinos at the Main Injector) Off-Axis $\nu_e$ Appearance (NOvA) experiment is a long baseline neutrino oscillation experiment. The experiment measures the oscillations of a primarily muon neutrino beam using two functionally identical liquid scintillator tracking calorimeters detectors placed 810 km apart and 14 milliradians off-axis to the NuMI beam. The oscillation parameters $\sin^2 \theta_{23}$ and $\left | \Delta m^2_{32} \right |$ are measured from the disappearance of muon neutrinos as they propagate between the two detectors using the first data collected in 2014 and 2015. The primary NOvA analysis uses charged current events only in the fiducial volume of the far detector. This analysis also includes a non-fiducial sample of interactions that originate in the fiducial volume of the far detector but escape the detector. This analysis measures the oscillation parameters as $\sin^2 \theta_{23}$ = 0.31-0.71 and $\left | \Delta m^2_{32} \right |$ = 2.15-2.91$\times$10$^{-3}$ eV$^2$ at 90\% confidence limits.