Prospects of Light Sterile Neutrino Oscillation and CP Violation Searches at the Fermilab Short Baseline Neutrino Facility

Abstract

We investigate the ability of the Short Baseline Neutrino (SBN) experimental program at Fermilab to test the globally-allowed (3+$N$) sterile neutrino oscillation parameter space. We explicitly consider the globally-allowed parameter space for the (3+1), (3+2), and (3+3) sterile neutrino oscillation scenarios. We find that SBN can probe with $5\sigma$ sensitivity more than 85\%, 95\% and 55\% of the parameter space currently allowed at 99\% confidence level for the (3+1), (3+2) and (3+3) scenarios, respectively. In the case of the (3+2) and (3+3) scenarios, CP-violating phases appear in the oscillation probability terms, leading to observable differences in the appearance probabilities of neutrinos and antineutrinos. We explore SBN's sensitivity to those phases for the (3+2) scenario through the currently planned neutrino beam running, and investigate potential improvements through additional antineutrino beam running. We show that, if antineutrino exposure is considered, for maximal values of the (3+2) CP-violating phase ${\varphi }_{54}$, SBN could be the first experiment to directly observe $\sim 2\sigma$ hints of CP violation associated with an extended lepton sector.

19 pages, 21 figures

References in corpus (9)

• The Reactor Antineutrino Anomaly
• Measurement of Neutrino Oscillation by the K2K Experiment
• Measurement of the solar neutrino capture rate with gallium metal. III: Results for the 2002--2007 data-taking period
• Sterile neutrino search at NEOS Experiment
• Updated Global 3+1 Analysis of Short-BaseLine Neutrino Oscillations
• Search for Sterile Neutrinos Mixing with Muon Neutrinos in MINOS
• First Constraints on the Complete Neutrino Mixing Matrix with a Sterile Neutrino
• Dual baseline search for muon antineutrino disappearance at 0.1 eV^2 < Δm^2 < 100 eV^2
• A new type of Neutrino Detector for Sterile Neutrino Search at Nuclear Reactors and Nuclear Nonproliferation Applications

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• A Short Travel for Neutrinos in Large Extra Dimensions
• PROSPECT-II Physics Opportunities
• Perspectives and Outlook from HEP Window on the Universe
• Applied Antineutrino Physics 2018 Proceedings
• Neutrino Energy Estimation in Neutral Current Interactions and Prospects for Sterile Neutrino Searches
• Quasi-Sterile Neutrinos from Dark Sectors I. BSM matter effects in neutrino oscillations and the short-baseline anomalies
• Standard and Non-Standard Aspects of Neutrino Physics
• Grid-based minimization at scale: Feldman-Cousins corrections for SBN