PINGU sensitivity to neutrino mass hierarchy

Journal Article · Tue Nov 18 00:00:00 EST 2014 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4902777· OSTI ID:22390645

Groß, Andreas ^[1]

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1. Technische Universität München, D-85748 Garching (Germany)

Determination of the neutrino mass hierarchy (NMH) is among the most fundamental questions in particle physics. Recent measurements of 1) a large mixing angle between the first and the third neutrino mass eigenstates and 2) the first observation of atmospheric neutrino oscillations at tens of GeV with neutrino telescopes, open the intriguing new possibility to exploit matter effects in neutrino oscillation to determine the neutrino mass hierarchy. A further extension of IceCube/DeepCore called PINGU (Precision IceCube Next Generation Upgrade) has been recently envisioned with the ultimate goal to measure neutrino mass hierarchy. PINGU would consist of additional IceCube-like strings of detectors deployed in the deepest and cleanest ice in the center of IceCube. More densely deployed instrumentation would provide a threshold substantially below 10 GeV and enhance the sensitivity to the mass hierarchy signal in atmospheric neutrinos. Here we discuss an estimate of the PINGU sensitivity to the mass hierarchy determined using an approximation with an Asimov dataset and an oscillation parameter fit.

• OSTI ID: 22390645
• Journal Information: AIP Conference Proceedings, Vol. 1630, Issue 1; Conference: VLVvT 13: 6. International Workshop on Very Large Volumte Neutrino Telescopes, Stockholm (Sweden), 5-7 Aug 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
APPROXIMATIONS
CHERENKOV COUNTERS
COSMIC NEUTRINOS
EIGENSTATES
GEV RANGE
ICE
MULTIPARTICLE SPECTROMETERS
NEUTRINO DETECTION
NEUTRINO OSCILLATION
PARTICLE IDENTIFICATION
REST MASS
SCINTILLATION COUNTERS
SENSITIVITY
SIGNALS
TELESCOPE COUNTERS
WEINBERG ANGLE