Development Toward a Ground-Based Interferometric Phased Array for Radio Detection of High Energy Neutrinos

Abstract

The in-ice radio interferometric phased array technique for detection of high energy neutrinos looks for Askaryan emission from neutrinos interacting in large volumes of glacial ice, and is being developed as a way to achieve a low energy threshold and a large effective volume at high energies. The technique is based on coherently summing the impulsive Askaryan signal from multiple antennas, which increases the signal-to-noise ratio for weak signals. We report here on measurements and a simulation of thermal noise correlations between nearby antennas, beamforming of impulsive signals, and a measurement of the expected improvement in trigger efficiency through the phased array technique. We also discuss the noise environment observed with an analog phased array at Summit Station, Greenland, a possible site for an interferometric phased array for radio detection of high energy neutrinos.

13 Pages, 14 Figures

References in corpus (3)

• Observational Constraints on the Ultra-high Energy Cosmic Neutrino Flux from the Second Flight of the ANITA Experiment
• The IceCube Neutrino Observatory - Contributions to ICRC 2015 Part II: Atmospheric and Astrophysical Diffuse Neutrino Searches of All Flavors
• Radar Absorption, Basal Reflection, Thickness, and Polarization Measurements from the Ross Ice Shelf

Cited by in corpus (10)

• IceCube-Gen2: The Window to the Extreme Universe
• Radio detection of Cosmic-Ray Air Showers and High-Energy Neutrinos
• Design and Sensitivity of the Radio Neutrino Observatory in Greenland (RNO-G)
• Design and Performance of an Interferometric Trigger Array for Radio Detection of High-Energy Neutrinos
• Zee-Burst: A New Probe of Neutrino Non-Standard Interactions at IceCube
• Probing Neutrino Mass Models through Resonances at Neutrino Telescopes
• Broadband RF Phased Array Design with MEEP: Comparisons to Array Theory in Two and Three Dimensions
• The Next-Generation Radio Neutrino Observatory -- Multi-Messenger Neutrino Astrophysics at Extreme Energies
• Observation of In-ice Askaryan Radiation from High-Energy Cosmic Rays
• Hybrid detection of high-energy cosmic neutrinos with the next-generation neutrino detectors at the South Pole