Abstract
The sensitivity of the Deep Underground Neutrino Experiment (DUNE) to neutrino oscillation is determined, based on a full simulation, reconstruction, and event selection of the far detector and a full simulation and parameterized analysis of the near detector. Detailed uncertainties due to the flux prediction, neutrino interaction model, and detector effects are included. DUNE will resolve the neutrino mass ordering to a precision of 5sigma , for all delta _{mathrm{CP}} values, after 2 years of running with the nominal detector design and beam configuration. It has the potential to observe charge-parity violation in the neutrino sector to a precision of 3sigma (5sigma ) after an exposure of 5 (10) years, for 50% of all delta _{mathrm{CP}} values. It will also make precise measurements of other parameters governing long-baseline neutrino oscillation, and after an exposure of 15 years will achieve a similar sensitivity to sin ^{2} 2theta _{13} to current reactor experiments.
Highlights
The Deep Underground Neutrino Experiment (DUNE) is a next-generation, long-baseline neutrino oscillation experiment which will carry out a detailed study of neutrino mixing utilizing high-intensity νμ and νμ beams measured over a long baseline
The analyses presented here are based on full, end-to-end simulation, reconstruction, and event selection of far detector (FD) Monte Carlo and parameterized analysis of near detector (ND) Monte Carlo of the DUNE experiment
Detailed uncertainties from flux, the neutrino interaction model, and detector effects have been included in the analysis
Summary
The Deep Underground Neutrino Experiment (DUNE) is a next-generation, long-baseline neutrino oscillation experiment which will carry out a detailed study of neutrino mixing utilizing high-intensity νμ and νμ beams measured over a long baseline. GF is the Fermi constant, Ne is the number density of electrons in the Earth’s crust, Δi j = 1.267Δmi2j L/Eν, L is the baseline in km, and Eν is the neutrino energy in GeV Both δCP and a terms are positive for νμ → νe and negative for νμ → νe oscillations; i.e., a neutrino-antineutrino asymmetry is introduced both by CPV (δCP) and the matter effect (a). DUNE’s relatively high energy neutrino beam enhances the size of the matter effect and will allow DUNE to measure δCP and the mass ordering simultaneously. The unique LArTPC detector technology will enhance the resolution on DUNE’s measurement of the value of δCP, and along with the increased neutrino energy, gives DUNE a different set of systematic uncertainties to other experiments, making DUNE complementary with them.
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