A search for IceCube events in the direction of ANITA neutrino candidates
During the first three flights of the Antarctic Impulsive Transient Antenna (ANITA) experiment, the collaboration detected several neutrino candidates. Two of these candidate events were consistent with an ultra-high-energy up-going air shower and compatible with a tau neutrino interpretation. A thi...
Published in: | The Astrophysical Journal |
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American Astronomical Society
2020
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Online Access: | https://doi.org/10.3847/1538-4357/ab791d https://ora.ox.ac.uk/objects/uuid:a08be53a-28eb-4ceb-bb11-fb237680d493 |
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ftuloxford:oai:ora.ox.ac.uk:uuid:a08be53a-28eb-4ceb-bb11-fb237680d493 2023-05-15T13:49:19+02:00 A search for IceCube events in the direction of ANITA neutrino candidates Aartsen, MG Ackermann, M Adams, J Aguilar, JA Ahlers, M Ahrens, M Alispach, C Andeen, K Anderson, T Ansseau, I Anton, G Argüelles, C Auffenberg, J Axani, S Backes, P Bagherpour, H Bai, X Balagopal V, A Barbano, A Barwick, SW Bastian, B Baum, V Baur, S Bay, R Beatty, JJ Becker, K-H Tjus, JB BenZvi, S Berley, D Bernardini, E Besson, DZ Binder, G Bindig, D Blaufuss, E Blot, S Bohm, C Böser, S Botner, O Böttcher, J Bourbeau, E Bourbeau, J Bradascio, F Braun, J Bron, S Brostean-Kaiser, J Burgman, A Buscher, J Busse, RS Carver, T Collaboration, IceCube 2020-04-06 https://doi.org/10.3847/1538-4357/ab791d https://ora.ox.ac.uk/objects/uuid:a08be53a-28eb-4ceb-bb11-fb237680d493 eng eng American Astronomical Society doi:10.3847/1538-4357/ab791d https://ora.ox.ac.uk/objects/uuid:a08be53a-28eb-4ceb-bb11-fb237680d493 https://doi.org/10.3847/1538-4357/ab791d info:eu-repo/semantics/openAccess Journal article 2020 ftuloxford https://doi.org/10.3847/1538-4357/ab791d 2022-06-28T20:19:48Z During the first three flights of the Antarctic Impulsive Transient Antenna (ANITA) experiment, the collaboration detected several neutrino candidates. Two of these candidate events were consistent with an ultra-high-energy up-going air shower and compatible with a tau neutrino interpretation. A third neutrino candidate event was detected in a search for Askaryan radiation in the Antarctic ice, although it is also consistent with the background expectation. The inferred emergence angle of the first two events is in tension with IceCube and ANITA limits on isotropic cosmogenic neutrino fluxes. Here, we test the hypothesis that these events are astrophysical in origin, possibly caused by a point source in the reconstructed direction. Given that any ultra-high-energy tau neutrino flux traversing the Earth should be accompanied by a secondary flux in the TeV-PeV range, we search for these secondary counterparts in seven years of IceCube data using three complementary approaches. In the absence of any significant detection, we set upper limits on the neutrino flux from potential point sources. We compare these limits to ANITA's sensitivity in the same direction and show that an astrophysical explanation of these anomalous events under standard model assumptions is severely constrained regardless of source spectrum or time profile. Article in Journal/Newspaper Antarc* Antarctic ORA - Oxford University Research Archive Antarctic The Antarctic The Astrophysical Journal 892 1 53 |
institution |
Open Polar |
collection |
ORA - Oxford University Research Archive |
op_collection_id |
ftuloxford |
language |
English |
description |
During the first three flights of the Antarctic Impulsive Transient Antenna (ANITA) experiment, the collaboration detected several neutrino candidates. Two of these candidate events were consistent with an ultra-high-energy up-going air shower and compatible with a tau neutrino interpretation. A third neutrino candidate event was detected in a search for Askaryan radiation in the Antarctic ice, although it is also consistent with the background expectation. The inferred emergence angle of the first two events is in tension with IceCube and ANITA limits on isotropic cosmogenic neutrino fluxes. Here, we test the hypothesis that these events are astrophysical in origin, possibly caused by a point source in the reconstructed direction. Given that any ultra-high-energy tau neutrino flux traversing the Earth should be accompanied by a secondary flux in the TeV-PeV range, we search for these secondary counterparts in seven years of IceCube data using three complementary approaches. In the absence of any significant detection, we set upper limits on the neutrino flux from potential point sources. We compare these limits to ANITA's sensitivity in the same direction and show that an astrophysical explanation of these anomalous events under standard model assumptions is severely constrained regardless of source spectrum or time profile. |
format |
Article in Journal/Newspaper |
author |
Aartsen, MG Ackermann, M Adams, J Aguilar, JA Ahlers, M Ahrens, M Alispach, C Andeen, K Anderson, T Ansseau, I Anton, G Argüelles, C Auffenberg, J Axani, S Backes, P Bagherpour, H Bai, X Balagopal V, A Barbano, A Barwick, SW Bastian, B Baum, V Baur, S Bay, R Beatty, JJ Becker, K-H Tjus, JB BenZvi, S Berley, D Bernardini, E Besson, DZ Binder, G Bindig, D Blaufuss, E Blot, S Bohm, C Böser, S Botner, O Böttcher, J Bourbeau, E Bourbeau, J Bradascio, F Braun, J Bron, S Brostean-Kaiser, J Burgman, A Buscher, J Busse, RS Carver, T Collaboration, IceCube |
spellingShingle |
Aartsen, MG Ackermann, M Adams, J Aguilar, JA Ahlers, M Ahrens, M Alispach, C Andeen, K Anderson, T Ansseau, I Anton, G Argüelles, C Auffenberg, J Axani, S Backes, P Bagherpour, H Bai, X Balagopal V, A Barbano, A Barwick, SW Bastian, B Baum, V Baur, S Bay, R Beatty, JJ Becker, K-H Tjus, JB BenZvi, S Berley, D Bernardini, E Besson, DZ Binder, G Bindig, D Blaufuss, E Blot, S Bohm, C Böser, S Botner, O Böttcher, J Bourbeau, E Bourbeau, J Bradascio, F Braun, J Bron, S Brostean-Kaiser, J Burgman, A Buscher, J Busse, RS Carver, T Collaboration, IceCube A search for IceCube events in the direction of ANITA neutrino candidates |
author_facet |
Aartsen, MG Ackermann, M Adams, J Aguilar, JA Ahlers, M Ahrens, M Alispach, C Andeen, K Anderson, T Ansseau, I Anton, G Argüelles, C Auffenberg, J Axani, S Backes, P Bagherpour, H Bai, X Balagopal V, A Barbano, A Barwick, SW Bastian, B Baum, V Baur, S Bay, R Beatty, JJ Becker, K-H Tjus, JB BenZvi, S Berley, D Bernardini, E Besson, DZ Binder, G Bindig, D Blaufuss, E Blot, S Bohm, C Böser, S Botner, O Böttcher, J Bourbeau, E Bourbeau, J Bradascio, F Braun, J Bron, S Brostean-Kaiser, J Burgman, A Buscher, J Busse, RS Carver, T Collaboration, IceCube |
author_sort |
Aartsen, MG |
title |
A search for IceCube events in the direction of ANITA neutrino candidates |
title_short |
A search for IceCube events in the direction of ANITA neutrino candidates |
title_full |
A search for IceCube events in the direction of ANITA neutrino candidates |
title_fullStr |
A search for IceCube events in the direction of ANITA neutrino candidates |
title_full_unstemmed |
A search for IceCube events in the direction of ANITA neutrino candidates |
title_sort |
search for icecube events in the direction of anita neutrino candidates |
publisher |
American Astronomical Society |
publishDate |
2020 |
url |
https://doi.org/10.3847/1538-4357/ab791d https://ora.ox.ac.uk/objects/uuid:a08be53a-28eb-4ceb-bb11-fb237680d493 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
doi:10.3847/1538-4357/ab791d https://ora.ox.ac.uk/objects/uuid:a08be53a-28eb-4ceb-bb11-fb237680d493 https://doi.org/10.3847/1538-4357/ab791d |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3847/1538-4357/ab791d |
container_title |
The Astrophysical Journal |
container_volume |
892 |
container_issue |
1 |
container_start_page |
53 |
_version_ |
1766251165135142912 |