Concept Study of a Radio Array Embedded in a Deep Gen2-like Optical Array.

Abstract

The IceCube Neutrino Observatory has discovered a diffuse astrophysical flux up to 10 PeV and is now planning a large extension with IceCube-Gen2, including an optical array and a large radio array at shallow depth [1]. Neutrino searches for energies >100 PeV are best done with such shallow radio detectors like the Askaryan Radio Array (ARA) or similar (buried as deep as 200 meters below the surface) as they are cheaper to deploy. This poster explores the potential of opportunistically burying radio antennas within the planned IceCube-Gen2 detector volume (between 1350 meters and 2600 meters below the surface). A hybrid detection of events in optical and radio could substantially improve the uncertainty of neutrino cascade direction as radio signals do not scatter in ice. We show the first results of simulating neutrinos from an astrophysical and a cosmogenic flux interacting with 9760 ARA-style vertically polarized radio antennas distributed evenly across 122 strings.

Progress in the Simulation and Modelling of Coherent Radio Pulses from Ultra High-Energy Cosmic Particles

“…This field is mature enough to be rapidly growing with new planned experimental setups [92][93][94][95][96][97][98], but at the same time, there are still aspects that require further development, such as exploring other mechanisms leading to coherent pulses like transition radiation [99,100], or the full development of dedicated interferometric approaches [101] that are likely to provide new opportunities for the future.…”