Current Status of an Array-Wide Diffuse UHE Neutrino Search with the Askaryan Radio Array

The Askaryan Radio Array (ARA) is an ultrahigh energy (UHE) neutrino detector at the South Pole, designed to detect radio emissions from neutrino-induced particle showers in the ice. ARA consists of five independent stations, each made up of clusters of antennas deployed ~200 meters deep in a roughly cubical lattice with a side length of ~10 meters. These stations have collectively accumulated ~30 station-years of livetime. The fifth station includes a phased array, which improves sensitivity to low signal-to-noise ratio events by beamforming signals from 7 closely packed, vertically polarized antennas. As a multi-station array, ARA shares a similar design with current RNO-G and future IceCube-Gen2 Radio detectors, which aim to scale up this approach. In this talk, I will present the current state of the first array-wide diffuse neutrino search using ~28 station-years of data. We expect that this analysis will result in the observation of the first UHE neutrinos or set world-leading limits for radio-based neutrino detectors below 1000 EeV. I will also discuss how this analysis demonstrates the potential of ARA and similar multi-station radio arrays to successfully conduct an array-wide neutrino search.