A search for cosmogenic neutrinos with the ARIANNA test bed using 4.5 years of data

Understand

The primary mission of the ARIANNA ultra-high energy neutrino telescope is to uncover astrophysical sources of neutrinos with energies greater than $10^{16}\mathrm{eV}$.

• A pilot array, consisting of seven ARIANNA stations located on the surface of the Ross Ice Shelf in Antarctica, was commissioned in November 2014.
• We report on the search for astrophysical neutrinos using data collected between November 2014 and February 2019.
• A straight-forward template matching analysis yielded no neutrino candidates, with a signal efficiency of 79%.