Constraints on the diffuse high-energy neutrino flux from the third flight of ANITA

Abstract

The Antarctic Impulsive Transient Antenna (ANITA), a NASA long-duration balloon payload, searches for radio emission from interactions of ultra-high-energy neutrinos in polar ice. The third flight of ANITA (ANITA-III) was launched in December 2014 and completed a 22-day flight. We present the results of three analyses searching for Askaryan radio emission of neutrino origin. In the most sensitive of the analyses, we find one event in the signal region on an expected a priori background of $0.7_{-0.3}^{+0.5}$. Though consistent with the background estimate, the candidate event remains compatible with a neutrino hypothesis even after additional post-unblinding scrutiny.

arXiv comment15 pages, 15 figures, Accepted to PRD

References in corpus (14)

• HEALPix -- a Framework for High Resolution Discretization, and Fast Analysis of Data Distributed on the Sphere
• Limits and Confidence Intervals in the Presence of Nuisance Parameters
• Cosmogenic Neutrinos: parameter space and detectabilty from PeV to ZeV
• Erratum: Observational Constraints on the Ultra-high Energy Cosmic Neutrino Flux from the Second Flight of the ANITA Experiment
• Observational Constraints on the Ultra-high Energy Cosmic Neutrino Flux from the Second Flight of the ANITA Experiment
• RICE Limits on the Diffuse Ultra-High Energy Neutrino Flux
• The Antarctic Impulsive Transient Antenna Ultra-high Energy Neutrino Detector Design, Performance, and Sensitivity for 2006-2007 Balloon Flight
• An improved limit to the diffuse flux of ultra-high energy neutrinos from the Pierre Auger Observatory
• Calculation of High Energy Neutrino-Nucleon Cross Sections and Uncertainties Using the MSTW Parton Distribution Functions and Implications for Future Experiments
• Observation of Ultra-high-energy Cosmic Rays with the ANITA Balloon-borne Radio Interferometer
• Characteristics of Four Upward-pointing Cosmic-ray-like Events Observed with ANITA
• New Limits on the Ultra-high Energy Cosmic Neutrino Flux from the ANITA Experiment
• Minimal Cosmogenic Neutrinos
• The Large Analog Bandwidth Recorder And Digitizer with Ordered Readout (LABRADOR) ASIC

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