PoS - Proceedings of Science
Volume 358 - 36th International Cosmic Ray Conference (ICRC2019) - NU - Neutrino
Neutrino direction and energy resolution of Askaryan detectors
C. Glaser*  on behalf of the ARIANNA collaboration
Full text: pdf
Pre-published on: September 02, 2019
Published on: July 02, 2021
Detection of high-energy neutrinos via the radio technique allows for an exploration of the neutrino energy range from ~$10^{16}~\mathrm{eV}$ to $10^{20}~\mathrm{eV}$ with unprecedented precision. These Askaryan detectors have matured in two pilot arrays (ARA and ARIANNA) and the construction of a large-scale detector is actively discussed in the community. In this contribution, we present reconstruction techniques to determine the neutrino direction and energy from the observed few-nanoseconds short radio flashes and quantify the resolution of one of such detectors. The reconstruction of the neutrino direction requires a precise measurement of both the signal direction as well as the signal polarization. The reconstruction of the neutrino energy requires, in addition, the measurement of the vertex distance, obtainable from the time difference of two signal paths through the ice, and the viewing angle of the in-ice shower via the frequency spectrum. We discuss the required algorithms and quantify the resolution using a detailed Monte Carlo simulation study.
DOI: https://doi.org/10.22323/1.358.0899
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