Minimal 3+2 sterile neutrino model at LBNE

Abstract

In this paper we examine the sensitivity of the Long Baseline Neutrino Oscillation Experiment to the inclusion of two new sterile neutrino flavors with masses in the eV range. We implement a model with a modified Casas-Ibarra parametrization which can accommodate medium scale mass eigenstates and introduces a new complex mixing angle. We explore the new mixing angle parameter space and demonstrate how LBNE can be used to either provide evidence for or rule out a particular model of sterile neutrinos. Certain three-flavor CP-violation scenarios cannot be distinguished from the sterile neutrinos. Constraints from the Daya Bay reactor experiment and T2K are used to help lift this degeneracy.

14 pages, 17 figures v2: 17 pages, numerical corrections for figures 4 and 5, updated references and minor text changes v3: version as it appears in publication

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Cited by in corpus (5)

• Imprints of CP violation induced by sterile neutrinos in T2K data
• Capabilities of long-baseline experiments in the presence of a sterile neutrino
• How to Identify Different New Neutrino Oscillation Physics Scenarios at DUNE
• CP-Invariance Violation at Short-Baseline Experiments in 3+1 Neutrino Scenarios
• A Right-handed Neutrino Portal to the Hidden sector : Active Neutrinos and their Twins in an F-theory model