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NuMI Off-Axis νe Appearance Experiment

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Search for sterile neutrinos in NOvA neutrino data

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Submitted by:
Jeremy Hewes
Updated by:
Maury Goodman
Document Created:
14 Jun 2018, 08:38
Contents Revised:
19 Jun 2018, 11:21
Metadata Revised:
12 Nov 2018, 16:27
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This talk discusses an updated analysis of neutrino data from the NOvA experiment to search for sterile neutrino oscillations. NOvA consists of two functionally identical liquid scintillator detectors in Fermilab's NuMI neutrino beam: a 300 ton near detector at a 1km baseline, and a 14,000 ton far detector 810km away in Ash River, MN, 14.6 mrad off the beam's central axis. Sterile neutrino oscillations are constrained by searching for neutrino disappearance in neutral current interactions between the near and far detectors. A covariance matrix approach is utilised to cancel systematic uncertainties between the two detectors over a broad range of Δm^2_41 parameter space. This analysis uses neutrino data collected between February 2014 and February 2017, corresponding to an exposure equivalent to 8.85e20 protons on target. A summary is provided of methods and results.
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Notes and Changes:
Updated slides addressing comments.
Associated with Events:
held on 14 Jun 2018 in WH2NW black hole
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