Using seven years of IceCube data, no neutrino counterparts are found in the directions of the three ANITA candidate events, and upper limits rule out bright TeV to PeV point-source emission.
Coherent transition radiation from the geomagnetically-induced current in cosmic-ray air showers: Implications for the anomalous events observed by ANITA
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abstract
We show that coherent transition radiation from the electrically-neutral transverse geomagnetic current (CTR- GM) in a cosmic-ray air shower provides a natural, standard model, explanation to the recent ``anomalous'' events observed by the ANITA detector. We demonstrate that for zenith angles less than roughly 70 degrees, combined with high surface elevation, the inclusion of CTR-GM can significantly alter the emitted electric field from a cosmic-ray air shower. CTR-GM therefore has to be included in radio emission models to provide a full description of the radio emission from a high-energy cosmic-ray air shower traversing a dielectric boundary.
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2019 1verdicts
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A search for IceCube events in the direction of ANITA neutrino candidates
Using seven years of IceCube data, no neutrino counterparts are found in the directions of the three ANITA candidate events, and upper limits rule out bright TeV to PeV point-source emission.