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Volume 358 - 36th International Cosmic Ray Conference (ICRC2019) - NU - Neutrino
Concept Study for the Beamforming Elevated Array for Cosmic Neutrinos (BEACON)
S. Wissel,* J. Alvarez-Muniz, C. Burch, A. Cummings, W. Carvalho, C. Deaconu, G. Hallinan, K. Hughes, A. Ludwig, E. Oberla, C. Paciaroni, A. Rodriguez, A. Romero-Wolf, H. Schoorlemmer, D. Southall, B. Strutt, M. Vasquez, A.G. Vieregg, E. Zas
*corresponding author
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Pre-published on: 2019 July 22
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Tau neutrinos are expected to comprise one third of both the astrophysical and cosmogenic neutrino flux, but currently the flavor ratio is poorly constrained and the expected flux at energies >100 PeV is low. We present a new concept for a radio detector called BEACON sensitive to tau neutrinos with energies greater than 100 PeV in which a radio interferometer searches for upgoing tau neutrinos from a high elevation mountain. Signals from several antennas are coherently summed at the trigger level, permitting not only directional masking of anthropogenic backgrounds, but also a lower trigger threshold. Simulation studies indicate that a modest array size and small number of stations can achieve competitive sensitivity, provided the receivers are at high enough elevation. As a proof of concept, an array of four 30-80 MHz dual polarized antennas was deployed at the White Mountain Research Station.
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