Neutrino oscillations at DUNE with improved energy reconstruction

Abstract

We study the physics reach of the long-baseline oscillation analysis of the DUNE experiment when realistic simulations are used to estimate its neutrino energy reconstruction capabilities. Our studies indicate that significant improvements in energy resolution compared to what is customarily assumed are plausible. This improved energy resolution can increase the sensitivity to leptonic CP violation in two ways. On the one hand, the CP-violating term in the oscillation probability has a characteristic energy dependence that can be better reproduced. On the other hand, the second oscillation maximum, especially sensitive to ${\delta }_{CP}$, is better reconstructed. These effects lead to a significant improvement in the fraction of values of ${\delta }_{CP}$ for which a $5\sigma$ discovery of leptonic CP-violation would be possible. The precision of the ${\delta }_{CP}$ measurement could also be greatly enhanced, with a reduction of the maximum uncertainties from $26^{\circ }$ to $18^{\circ }$ for a 300~MW$\cdot$kt$\cdot$yr exposure. We therefore believe that this potential gain in physics reach merits further investigations of the detector performance achievable in DUNE.

24 pages, 10 figures, 2 tables

References in corpus (8)

• Observation of electron-antineutrino disappearance at Daya Bay
• Indication of Electron Neutrino Appearance from an Accelerator-produced Off-axis Muon Neutrino Beam
• Updated fit to three neutrino mixing: status of leptonic CP violation
• Precision physics with a wide band super neutrino beam
• What is the probability that ${\theta }_{13}$ and CP violation will be discovered in future neutrino oscillation experiments?
• Reassessing the sensitivity to leptonic CP violation
• Probing Neutrino Oscillation Parameters using High Power Superbeam from ESS
• Expected performance of an ideal liquid argon neutrino detector with enhanced sensitivity to scintillation light

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