Antarctic Ross Ice-Shelf Antenna Neutrino Array (ARIANNA) is a proposed detector for ultra-high energy astrophysical neutrinos. It will detect coherent radio Cherenkov emissions from the particle showers produced by neutrinos with energies above about 10^17 eV. ARIANNA will be built on the Ross Ice Shelf just off the coast of Antarctica, where it will eventually cover about 900 km^2 in surface area. There, the ice-water interface below the shelf reflects radio waves, giving ARIANNA sensitivity to downward going neutrinos and improving its sensitivity to horizontally incident neutrinos. ARIANNA detector stations will each contain 4-8 antennas which search for brief pulses of 50 MHz to 1 GHz radio emission from neutrino interactions.
As of 2016, a prototype array consisting of 7 stations had been deployed, and was taking data. An initial search for neutrinos was made; none were found, and an upper limit was generated.
References
- Gerhardt, Lisa; Klein, Spencer R; Stezelberger, Thorsten; Barwick, Steve; Dookayka, Kamlesh; Hanson, Jordan; Nichol, Ryan (2010). "A prototype station for ARIANNA: A detector for cosmic neutrinos". Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 624 (1): 85–91. arXiv:1005.5193. Bibcode:2010NIMPA.624...85G. doi:10.1016/j.nima.2010.09.032.
- Gerhardt, Lisa; Klein, Spencer R; Stezelberger, Thorsten; Barwick, Steve; Dookayka, Kamlesh; Hanson, Jordan; Nichol, Ryan (2015). "A First Search for Cosmogenic Neutrinos with the ARIANNA Hexagonal Radio Array". Astroparticle Physics. 70 (2015): 12–26. arXiv:1410.7352. Bibcode:2015APh....70...12B. CiteSeerX 10.1.1.743.4766. doi:10.1016/j.astropartphys.2015.04.002.
External links
- ARIANNA Home Page Archived 2016-05-17 at the Portuguese Web Archive
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