2006
DOI: 10.1103/physrevlett.96.171101
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Constraints on Cosmic Neutrino Fluxes from the Antarctic Impulsive Transient Antenna Experiment

Abstract: We report new limits on cosmic neutrino fluxes from the test flight of the Antarctic Impulsive Transient Antenna (ANITA) experiment, which completed an 18.4 day flight of a prototype long-duration balloon payload, called ANITA-lite, in early 2004. We search for impulsive events that could be associated with ultrahigh energy neutrino interactions in the ice and derive limits that constrain several models for ultrahigh energy neutrino fluxes and rule out the long-standing -burst model.

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Cited by 163 publications
(83 citation statements)
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“…The long-duration balloon flights of ANITA have demonstrated the capability of using a sub-orbital instrument for detecting radio signals from downward-going and horizontally propagating UHECRs [52][53][54]. Searches for radio signals from upward-going, neutrino-induced cascades in the Antarctic ice have led to limits on the diffuse flux of UHE neutrinos at energies above 10 10 GeV [55,56], culminating in stringent constraints [57] on "top-down" models of UHECR and UHE neutrino production via phenomena associated with relics from the Big Bang, from phase transitions or from physics near the Grand Unified scale in the early universe (e.g. Refs.…”
Section: Introductionmentioning
confidence: 99%
“…The long-duration balloon flights of ANITA have demonstrated the capability of using a sub-orbital instrument for detecting radio signals from downward-going and horizontally propagating UHECRs [52][53][54]. Searches for radio signals from upward-going, neutrino-induced cascades in the Antarctic ice have led to limits on the diffuse flux of UHE neutrinos at energies above 10 10 GeV [55,56], culminating in stringent constraints [57] on "top-down" models of UHECR and UHE neutrino production via phenomena associated with relics from the Big Bang, from phase transitions or from physics near the Grand Unified scale in the early universe (e.g. Refs.…”
Section: Introductionmentioning
confidence: 99%
“…This Askaryan pulse has been demonstrated experimentally in silica sand, rock salt, and ice, and all major radio emission properties have been confirmed: charge excess, coherence, pulse strength, and polarization of the signal. The detection technology has already been demonstrated on the ANITA balloon experiment (Barwick et al, 2006), and the Askaryan effect has been experimentally measured at particle accelerators (Saltzberg et al, 2001;Gorham et al, 2007). Several other experiments have already been undertaken that make use of the Askaryan effect for detecting high energy neutrinos.…”
Section: Similar Experimental Effortsmentioning
confidence: 97%
“…A variety of platforms and antenna types have been used in these experiments, depending on the requirements and limitations of each. ANITA, an Antarctic balloon-borne horn antenna array, is the most similar to PRIDE in concept and execution (Barwick et al, 2006). ANITA uses an array of about two dozen large horn antennas since (1) mass and power are far less constrained on a balloon flight than for PRIDE, and (2) on Earth, RF thermal and manmade backgrounds are higher, requiring additional channels and trigger logic.…”
Section: Similar Experimental Effortsmentioning
confidence: 99%
“…In the UHE neutrino energy range applicable to this experiment, 10 18 − 10 23 eV, the ANITA balloon-borne experiment [11], which observes the Antarctic ice shield looking for coherent radio Cherenkov emission in ice from cascades initiated by UHE neutrinos, has the greatest sensitivity to UHE neutrinos. Because the Antarctic ice shield is at the pole, ANITA is only sensitive to UHE neutrinos from the equatorial plane region from declinations approximately |δ| < 15 • .…”
Section: Comparison With Other Facilitiesmentioning
confidence: 99%