Resolving the Mass Hierarchy with Atmospheric Neutrinos using a Liquid Argon Detector

Abstract

We explore the potential offered by large-mass Liquid Argon detectors for determination of the sign of Delta m_{31}^2, or the neutrino mass hierarchy, through interactions of atmospheric neutrinos. We give results for a 100 kT sized magnetized detector which provides separate sensitivity to ν_μ, \barν_μand, over a limited energy range, to ν_e, \barν_e.We also discuss the sensitivity for the unmagnetized version of such a detector. After including the effect of smearing in neutrino energy and direction and incorporating the relevant statistical,theoretical and systematic errors, we perform a binned χ^2 analysis of simulated data. The χ^2 is marginalized over the presently allowed ranges of neutrino parameters and determined as a function of θ_{13}. We find that such a detector offers superior capabilities for hierarchy resolution, allowing a > 4σdetermination for a 100 kT detector over a 10 year running period for values of \sin^2 2θ_{13} \ge 0.05. For an unmagnetized detector, a 2.5σhierarchy sensitivity is possible for \sin^2 2θ_{13} = 0.04.

13 pages, 3 figures, typing error in the abstract corrected, no other change

References in corpus (29)

• A Measurement of Atmospheric Neutrino Oscillation Parameters by Super-Kamiokande I
• Precision Measurement of Neutrino Oscillation Parameters with KamLAND
• Phenomenology with Massive Neutrinos
• Status of global fits to neutrino oscillations
• Simulation of long-baseline neutrino oscillation experiments with GLoBES
• Ultrahigh-Energy Neutrino Interactions
• Getting the most from the statistical analysis of solar neutrino oscillations
• Independent Measurement of the Total Active 8B Solar Neutrino Flux Using an Array of 3He Proportional Counters at the Sudbury Neutrino Observatory
• Physics at a future Neutrino Factory and super-beam facility
• A New calculation of the atmospheric neutrino flux in a 3-dimensional scheme
• Atmospheric Neutrino Oscillations and New Physics
• Neutrino Interactions In Oscillation Experiments
• Status of atmospheric neutrino(mu)<-->neutrino(tau) oscillations and decoherence after the first K2K spectral data
• Mass Hierarchy Determination via future Atmospheric Neutrino Detectors
• Determining the Neutrino Mass Hierarchy with Atmospheric Neutrinos
• Atmospheric Neutrino Oscillations, theta(13) and Neutrino Mass Hierarchy
• Earth Matter Effects at Very Long Baselines and the Neutrino Mass Hierarchy
• Three-Neutrino Oscillations of Atmospheric Neutrinos, theta13, Neutrino Mass Hierarchy and Iron Magnetized Detectors
• A question of hierarchy: matter effects with atmospheric neutrinos and anti-neutrinos
• 1-3 leptonic mixing and the neutrino oscillograms of the Earth
• Medium effects for terrestrial and atmospheric neutrino oscillations
• The Earth Mantle-Core Effect in Matter-Induced Asymmetries for Atmospheric Neutrino Oscillations
• Measurement of Through-Going Particle Momentum By Means Of Multiple Scattering With The ICARUS T600 TPC
• Large Matter Effects in ${\nu }_{\mu }\to {\nu }_{\tau }$ Oscillations
• Feasibility of a Next Generation Underground Water Cherenkov Detector: UNO
• Conceptual design of a scalable multi-kton superconducting magnetized liquid Argon TPC
• LANNDD - A line of liquid argon TPC detectors scalable in mass from 200 Tons to 100 Ktons
• Ideas for future liquid Argon detectors
• First results from a Liquid Argon Time Projection Chamber in a Magnetic Field

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• On the Bayesian approach to neutrino mass ordering
• Measuring the Mass Hierarchy with Muon and Hadron Events in Atmospheric Neutrino Experiments
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• Effect of Non Unitarity on Neutrino Mass Hierarchy determination at DUNE, NO$\nu$A and T2K
• Atmospheric, long baseline, and reactor neutrino data constraints on ${\theta }_{13}$
• Discrimination of mass hierarchy with atmospheric neutrinos at a magnetized muon detector
• Neutrino Mass Ordering at DUNE: an Extra $\nu$-Bonus
• Synergies between neutrino oscillation experiments: An `adequate' configuration for LBNO
• A combined beta-beam and electron capture neutrino experiment
• Neutrino Tomography of the Earth with ORCA Detector
• Physics Potential of Future Atmospheric Neutrino Searches
• Atmospheric Neutrinos: Status and Prospects
• Mass Hierarchy Determination for ${\theta }_{13}=0$ and Atmospheric Neutrinos
• The impact of hierarchy upon the values of neutrino mixing parameters