학술논문
Performance of the ARIANNA Hexagonal Radio Array
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article
Author
Collaboration, ARIANNA; Barwick, SW; Berg, EC; Besson, DZ; Binder, G; Binns, WR; Boersma, D; Bose, RG; Braun, DL; Buckley, JH; Bugaev, V; Buitink, S; Dookayka, K; Dowkontt, PF; Duffin, T; Euler, S; Gerhardt, L; Gustafsson, L; Hallgren, A; Hanson, JC; Israel, MH; Kiryluk, J; Klein, S; Kleinfelder, S; Nelles, A; Niederhausen, H; Olevitch, MA; Persichelli, C; Ratzlaff, K; Rauch, BF; Reed, C; Roumi, M; Samanta, A; Simburger, GE; Stezelberger, T; Tatar, J; Uggerhoj, U; Walker, J; Young, R
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Abstract
Installation of the ARIANNA Hexagonal Radio Array (HRA) on the Ross Ice Shelfof Antarctica has been completed. This detector serves as a pilot program tothe ARIANNA neutrino telescope, which aims to measure the diffuse flux of veryhigh energy neutrinos by observing the radio pulse generated byneutrino-induced charged particle showers in the ice. All HRA stations ranreliably and took data during the entire 2014-2015 austral summer season. A newradio signal direction reconstruction procedure is described, and is observedto have a resolution better than a degree. The reconstruction is used in apreliminary search for potential neutrino candidate events in the data from oneof the newly installed detector stations. Three cuts are used to separate radiobackgrounds from neutrino signals. The cuts are found to filter out all datarecorded by the station during the season while preserving 85.4% of simulatedneutrino events that trigger the station. This efficiency is similar to thatfound in analyses of previous HRA data taking seasons.