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# The XXX International Conference on Neutrino Physics and Astrophysics (Neutrino 2022)

30 May 2022 to 4 June 2022
Virtual Seoul
Asia/Seoul timezone

## Novel Background Rejection Techniques in a Search for Ultra-high Energy Neutrinos Using an ARIANNA Detector Station at the South Pole

Not scheduled
5m
Virtual Seoul

#### Virtual Seoul

Poster Astrophysical neutrinos

### Description

The ARIANNA detector array is a radio-based neutrino detector array consisting of autonomous, solar-powered stations separated by 1km. It is designed to detect neutrinos with energies above $10^{17}$eV that interact with the cold, transparent polar ice. An ARIANNA detector station located near the South Pole has been equipped with 4 downward-facing LPDAs, 2 upward-facing LPDAs, and 2 dipole antennas, and has been taking data from December 2018 to January 2021. We provide a preliminary report on the background characteristics and the improvement in analysis efficiency due to the addition of new hardware and advancement in analysis techniques. We also present a comparison to the results obtained from ARIANNA stations that operated at sea level at Moore's Bay, Antarctica.

Collaboration The ARIANNA Collaboration

### Primary author

Leshan Zhao (University of California, Irvine)