Prospects for Measurement of the Neutrino Mass Hierarchy

Abstract

The unknown neutrino mass hierarchy -- whether the ${\nu }_3$ mass eigenstate is the heaviest or the lightest -- represents a major gap in our knowledge of neutrino properties. Determining the hierarchy is a critical step toward further precision measurements in the neutrino sector. The hierarchy is also central to interpreting the next generation of neutrinoless double beta decay results, plays a role in numerous cosmological and astrophysical questions, and serves as a powerful model discriminant for theories of neutrino mass generation and unification. Various current and planned experiments claim sensitivity for establishing the neutrino mass hierarchy. We review the most promising of these here, paying special attention to points of concern and consolidating the projected sensitivities into an outlook for the years ahead.

Uploading final version. 13 pages, 7 figures

References in corpus (9)

• Big-Bang Nucleosynthesis
• Improved measurements of the neutrino mixing angle ${\theta }_{13}$ with the Double Chooz detector
• Neutrino cosmology and Planck
• Experimental Requirements to Determine the Neutrino Mass Hierarchy Using Reactor Neutrinos
• Statistical Evaluation of Experimental Determinations of Neutrino Mass Hierarchy
• Determination of Neutrino Mass Hierarchy and Theta_13 with a Remote Detector of Reactor Antineutrinos
• Neutrino oscillograms of the Earth: effects of 1-2 mixing and CP-violation
• Neutrino Mass Hierarchy Determination Using Reactor Antineutrinos
• Characterization of 3 mm Glass Electrodes and Development of RPC Detectors for $INO-ICAL$ Experiment

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