ARIANNA Experiment explained

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.[1]

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.[2]

External links

Notes and References

  1. 1005.5193. Gerhardt. Lisa. 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. 85–91. Klein. Spencer R. Stezelberger. Thorsten. Barwick. Steve. Dookayka. Kamlesh. Hanson. Jordan. Nichol. Ryan. 2010. 1 . 10.1016/j.nima.2010.09.032. 2010NIMPA.624...85G.
  2. 1410.7352. Gerhardt. Lisa. A First Search for Cosmogenic Neutrinos with the ARIANNA Hexagonal Radio Array . Astroparticle Physics. 70 . 2015. 12–26. Klein. Spencer R. Stezelberger. Thorsten. Barwick. Steve. Dookayka. Kamlesh. Hanson. Jordan. Nichol. Ryan. 2015. 10.1016/j.astropartphys.2015.04.002. 10.1.1.743.4766. 2015APh....70...12B.