Allison, P;
Archambault, S;
Beatty, JJ;
Beheler-Amass, M;
Besson, DZ;
Beydler, M;
Chen, CC;
... Young, R; + view all
(2020)
Constraints on the diffuse flux of ultrahigh energy neutrinos from four years of Askaryan Radio Array data in two stations.
Physical Review D
, 102
(4)
, Article 043021. 10.1103/PhysRevD.102.043021.
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Abstract
The Askaryan Radio Array (ARA) is an ultrahigh energy (UHE, > 10^{17} eV) neutrino detector designed to observe neutrinos by searching for the radio waves emitted by the relativistic products of neutrino-nucleon interactions in Antarctic ice. In this paper, we present constraints on the diffuse flux of ultrahigh energy neutrinos between 10^{16} and 10^{21} eV resulting from a search for neutrinos in two complementary analyses, both analyzing four years of data (2013–2016) from the two deep stations (A2, A3) operating at that time. We place a 90% CL upper limit on the diffuse all flavor neutrino flux at 10^{18} eV of EF(E) = 5.6 x 10^{-16} cm^{-2}s^{-1}sr^{-1}. This analysis includes four times the exposure of the previous ARA result and represents approximately 1/5th he exposure expected from operating ARA until the end of 2022.
| Type: | Article |
|---|---|
| Title: | Constraints on the diffuse flux of ultrahigh energy neutrinos from four years of Askaryan Radio Array data in two stations |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevD.102.043021 |
| Publisher version: | https://doi.org/10.1103/PhysRevD.102.043021 |
| 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/10109785 |
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