Göttingen 2025 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 53: Neutrino Astronomy III

T 53.5: Vortrag

Mittwoch, 2. April 2025, 17:15–17:30, VG 1.105

Ultra-high-energy neutrino detection with radio antennas in the ground based observatory — •Baobiao Yue — Bergische Universität Wuppertal, Wuppertal. Germany

The detection of Ultra-High-Energy (UHE) neutrinos offers a unique opportunity to unravel the mysteries surrounding the astrophysical origins of the universe’s most energetic cosmic rays. Radio detection provides significant advantages for detecting highly inclined air showers induced by UHE neutrinos, including a larger exposure range compared to particle detectors and a precise reconstruction. Furthermore, this technique improves the air shower longitudinal reconstruction, which can be used to identify neutrinos with their first interaction far below the top of the atmosphere.

The Pierre Auger Observatory is the largest instrument with radio antennas for measuring air showers produced by UHE cosmic rays and neutrinos. In this work, we use it as an example of a ground-based observatory to study UHE neutrino detection. We demonstrate how the integration of radio antennas enhances UHE neutrino detection capabilities and facilitates classification. Since shower reconstruction using radio emissions is central for neutrino identification in this work, we will emphasize the method developed for detecting inclined air showers induced by neutrinos. Finally, we present the expected neutrino detection sensitivity achievable with the radio antennas alone.

Keywords: Astrophysical neutrinos; Ultra-High-Energy neutrino; radio antenna; air shower reconstruction; UHE neutrino identification