Kavli Affiliate: Abigail G. Vieregg
| First 5 Authors: Andrew Zeolla, Jaime Alvarez-Muñiz, Sergio Cabana-Freire, Washington Carvalho Jr., Austin Cummings
| Summary:
Ultra-high energy neutrinos ($E>10^{17}$ eV) can provide insight into the
most powerful accelerators in the universe, however their flux is extremely
low. The Beamforming Elevated Array for COsmic Neutrinos (BEACON) is a detector
concept which efficiently achieves sensitivity to this flux by employing phased
radio arrays on mountains, which search for the radio emission of up-going
extensive air showers created by Earth-skimming tau neutrinos. Here, we
calculate the point-source effective area of BEACON and characterize its
sensitivity to transient neutrino fluences with both short ($<15$ min) and long
($> 1$ day) durations. Additionally, by integrating the effective area, we
provide an updated estimate of the diffuse flux sensitivity. With just 100
stations, BEACON achieves sensitivity to short-duration transients such as
nearby short gamma-ray bursts. With 1000 stations, BEACON achieves a
sensitivity to long-duration transients, as well as the cosmogenic flux, ten
times greater than existing experiments at 1 EeV. With an efficient design
optimized for ultrahigh energy neutrinos, BEACON is capable of discovering the
sources of neutrinos at the highest energies.
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