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Toward High Energy Neutrino Detection with the Radar Echo Telescope for Cosmic Rays (RET-CR)
Prohira, S. ; de Vries, K. ; Allison, P. ; Beatty, J. ; Besson, D. ; Connolly, A. ; Dasgupta, P. ; Deaconu, C. ; De Kockere, S. ; Frikken, D. ... show 10 more
Prohira, S.
de Vries, K.
Allison, P.
Beatty, J.
Besson, D.
Connolly, A.
Dasgupta, P.
Deaconu, C.
De Kockere, S.
Frikken, D.
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Abstract
The Radar Echo Telescope for Cosmic Rays (RET-CR) is a pathfinder experiment for the Radar Echo Telescope for Neutrinos (RET-N), a next-generation in-ice detection experiment for ultra high energy neutrinos. RET-CR will serve as the testbed for the radar echo method to probe high-energy particle cascades in nature, whereby a transmitted radio signal is reflected from the ionization left in its wake. This method, recently validated at SLAC experiment T576, shows promising preliminary sensitivity to neutrino-induced cascades above the energy range of optical detectors like IceCube. RET-CR intends to use an in-nature test beam: the dense, in-ice cascade produced when the air shower of an ultra high energy cosmic ray impacts a high-elevation ice sheet. This in-ice cascade, orders of magnitude more dense than the in-air shower that preceded it, is similar in profile and density to the expected cascade from a neutrino-induced cascade deep in the ice. RET-CR will be triggered using surface scintillator technology and will be used to develop, test, and deploy the hardware, firmware, and software needed for the eventual RET-N. We present the strategy, status, and design sensitivity of RET-CR, and discuss its application to eventual neutrino detection.
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2022-03-18
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Sissa Medialab
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S. Prohira et al. Toward High Energy Neutrino Detection with the Radar Echo Telescope for Cosmic Rays (RET-CR). 37th International Cosmic Ray Conference (ICRC 2021). July 12th – 23rd, 2021. Online – Berlin, Germany. DOI: https://doi.org/10.22323/1.395.1082