The pros and cons of beyond standard model interpretations of ANITA events
International audience The Antarctic Impulsive Transient Antenna (ANITA) experiment has observed two air shower events with energy ∼ 500 PeV emerging from the Earth with exit angles ∼ 30◦ above the horizon. As was immediately noted by the ANITA Collaboration, these events (in principle) could origin...
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ftunivnantes:oai:HAL:hal-02278017v1 2023-05-15T13:31:55+02:00 The pros and cons of beyond standard model interpretations of ANITA events Anchordoqui, L.A. Antoniadis, I. Barger, V. Cornet, F. Canal, C. García Gutiérrez, M. Illana, J.I. Learned, J.G. Marfatia, D. Masip, M. Pakvasa, S. Palomares-Ruiz, S. Soriano, J.F. Weiler, T.J. Laboratoire de Physique Théorique et Hautes Energies (LPTHE) Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) Madison, United States 2019-07-24 https://hal.science/hal-02278017 https://doi.org/10.22323/1.358.0884 en eng HAL CCSD info:eu-repo/semantics/altIdentifier/arxiv/1907.06308 info:eu-repo/semantics/altIdentifier/doi/10.22323/1.358.0884 hal-02278017 https://hal.science/hal-02278017 ARXIV: 1907.06308 doi:10.22323/1.358.0884 INSPIRE: 1744116 PoS 36th International Cosmic Ray Conference https://hal.science/hal-02278017 36th International Cosmic Ray Conference, Jul 2019, Madison, United States. pp.884, ⟨10.22323/1.358.0884⟩ showers: atmosphere neutrino nucleon: interaction particle: messenger neutrino: detector ANITA IceCube Auger air charged current neutrino/tau observatory sensitivity tension horizon flux [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph] [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] info:eu-repo/semantics/conferenceObject Conference papers 2019 ftunivnantes https://doi.org/10.22323/1.358.0884 2023-03-08T05:15:02Z International audience The Antarctic Impulsive Transient Antenna (ANITA) experiment has observed two air shower events with energy ∼ 500 PeV emerging from the Earth with exit angles ∼ 30◦ above the horizon. As was immediately noted by the ANITA Collaboration, these events (in principle) could originate in the atmospheric decay of an upgoing τ -lepton produced through a charged current interaction of a ντ inside the Earth. However, the relatively steep arrival angles of these perplexing events create tension with the standard model (SM) neutrino-nucleon interaction cross section. Deepening the conundrum, the IceCube neutrino telescope and the Pierre Auger Observatory with substantially larger exposures to cosmic ντ ’s in this energy range have not observed any events. This lack of observation implies that the messenger particle (MP) giving rise to ANITA events must produce an air shower event rate at least a factor of 40 larger than that produced by a flux of τ-neutrinos to avoid conflicts with the upper limits reported by the IceCube and the Pierre Auger collaborations. In addition, the sensitivity of ANITA to MP-induced events must be comparable to or larger than those of IceCube and Auger to avoid conflict with the non-observation of any signal at these facilities. Beyond SM interpretations of ANITA events can be classified according to whether the MPs: (i) live inside the Earth, (ii) originate in neutrino-nucleon collisions inside the Earth, (iii) come from cosmological distances. In this communication we investigate the positive and negative facets of these three classes of models. Conference Object Antarc* Antarctic Université de Nantes: HAL-UNIV-NANTES Antarctic The Antarctic Proceedings of 36th International Cosmic Ray Conference — PoS(ICRC2019) 884 |
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Université de Nantes: HAL-UNIV-NANTES |
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ftunivnantes |
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English |
topic |
showers: atmosphere neutrino nucleon: interaction particle: messenger neutrino: detector ANITA IceCube Auger air charged current neutrino/tau observatory sensitivity tension horizon flux [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph] [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] |
spellingShingle |
showers: atmosphere neutrino nucleon: interaction particle: messenger neutrino: detector ANITA IceCube Auger air charged current neutrino/tau observatory sensitivity tension horizon flux [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph] [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] Anchordoqui, L.A. Antoniadis, I. Barger, V. Cornet, F. Canal, C. García Gutiérrez, M. Illana, J.I. Learned, J.G. Marfatia, D. Masip, M. Pakvasa, S. Palomares-Ruiz, S. Soriano, J.F. Weiler, T.J. The pros and cons of beyond standard model interpretations of ANITA events |
topic_facet |
showers: atmosphere neutrino nucleon: interaction particle: messenger neutrino: detector ANITA IceCube Auger air charged current neutrino/tau observatory sensitivity tension horizon flux [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph] [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] |
description |
International audience The Antarctic Impulsive Transient Antenna (ANITA) experiment has observed two air shower events with energy ∼ 500 PeV emerging from the Earth with exit angles ∼ 30◦ above the horizon. As was immediately noted by the ANITA Collaboration, these events (in principle) could originate in the atmospheric decay of an upgoing τ -lepton produced through a charged current interaction of a ντ inside the Earth. However, the relatively steep arrival angles of these perplexing events create tension with the standard model (SM) neutrino-nucleon interaction cross section. Deepening the conundrum, the IceCube neutrino telescope and the Pierre Auger Observatory with substantially larger exposures to cosmic ντ ’s in this energy range have not observed any events. This lack of observation implies that the messenger particle (MP) giving rise to ANITA events must produce an air shower event rate at least a factor of 40 larger than that produced by a flux of τ-neutrinos to avoid conflicts with the upper limits reported by the IceCube and the Pierre Auger collaborations. In addition, the sensitivity of ANITA to MP-induced events must be comparable to or larger than those of IceCube and Auger to avoid conflict with the non-observation of any signal at these facilities. Beyond SM interpretations of ANITA events can be classified according to whether the MPs: (i) live inside the Earth, (ii) originate in neutrino-nucleon collisions inside the Earth, (iii) come from cosmological distances. In this communication we investigate the positive and negative facets of these three classes of models. |
author2 |
Laboratoire de Physique Théorique et Hautes Energies (LPTHE) Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) |
format |
Conference Object |
author |
Anchordoqui, L.A. Antoniadis, I. Barger, V. Cornet, F. Canal, C. García Gutiérrez, M. Illana, J.I. Learned, J.G. Marfatia, D. Masip, M. Pakvasa, S. Palomares-Ruiz, S. Soriano, J.F. Weiler, T.J. |
author_facet |
Anchordoqui, L.A. Antoniadis, I. Barger, V. Cornet, F. Canal, C. García Gutiérrez, M. Illana, J.I. Learned, J.G. Marfatia, D. Masip, M. Pakvasa, S. Palomares-Ruiz, S. Soriano, J.F. Weiler, T.J. |
author_sort |
Anchordoqui, L.A. |
title |
The pros and cons of beyond standard model interpretations of ANITA events |
title_short |
The pros and cons of beyond standard model interpretations of ANITA events |
title_full |
The pros and cons of beyond standard model interpretations of ANITA events |
title_fullStr |
The pros and cons of beyond standard model interpretations of ANITA events |
title_full_unstemmed |
The pros and cons of beyond standard model interpretations of ANITA events |
title_sort |
pros and cons of beyond standard model interpretations of anita events |
publisher |
HAL CCSD |
publishDate |
2019 |
url |
https://hal.science/hal-02278017 https://doi.org/10.22323/1.358.0884 |
op_coverage |
Madison, United States |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
PoS 36th International Cosmic Ray Conference https://hal.science/hal-02278017 36th International Cosmic Ray Conference, Jul 2019, Madison, United States. pp.884, ⟨10.22323/1.358.0884⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/arxiv/1907.06308 info:eu-repo/semantics/altIdentifier/doi/10.22323/1.358.0884 hal-02278017 https://hal.science/hal-02278017 ARXIV: 1907.06308 doi:10.22323/1.358.0884 INSPIRE: 1744116 |
op_doi |
https://doi.org/10.22323/1.358.0884 |
container_title |
Proceedings of 36th International Cosmic Ray Conference — PoS(ICRC2019) |
container_start_page |
884 |
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1766022373467750400 |