Gorham, PW;
Ludwig, A;
Deaconu, C;
Cao, P;
Allison, P;
Banerjee, O;
Batten, L;
... Wissel, SA; + view all
(2021)
Unusual Near-Horizon Cosmic-Ray-like Events Observed by ANITA-IV.
Physical Review Letters
, 126
(7)
10.1103/PhysRevLett.126.071103.
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Abstract
ANITA’s fourth long-duration balloon flight in 2016 detected 29 cosmic-ray (CR)-like events on a background of 0.37 + 0.27 − 0.17 anthropogenic events. CRs are mainly seen in reflection off the Antarctic ice sheets, creating a phase-inverted waveform polarity. However, four of the below-horizon CR-like events show anomalous noninverted polarity, a p = 5.3 × 10 − 4 chance if due to background. All anomalous events are from locations near the horizon; ANITA-IV observed no steeply upcoming anomalous events similar to the two such events seen in prior flights.
| Type: | Article |
|---|---|
| Title: | Unusual Near-Horizon Cosmic-Ray-like Events Observed by ANITA-IV |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.126.071103 |
| Publisher version: | https://doi.org/10.1103/PhysRevLett.126.071103 |
| Language: | English |
| Additional information: | This version is the version of record. For information on re-use, please refer to the publisher's terms and conditions. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10131170 |
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