About the consistency of the energy scales of past and present instruments detecting cosmic rays above the ankle energy

The energy spectrum of the cosmic radiation in the range 10$^{19}$-2.4$\times$10$^{21}$ eV has been recently predicted showing a rich and distinctive staircase profile. In order to check the prediction, the spectra measured by running and past experiments above 10$^{19}$ eV are examined. The compute...

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Main Author: Codino, Antonio
Format: Report
Language:unknown
Published: arXiv 2017
Subjects:
High Energy Astrophysical Phenomena astro-ph.HE
FOS Physical sciences
Yakutsk
Online Access:https://dx.doi.org/10.48550/arxiv.1710.06659
https://arxiv.org/abs/1710.06659
id ftdatacite:10.48550/arxiv.1710.06659
record_format openpolar
spelling ftdatacite:10.48550/arxiv.1710.06659 2023-05-15T18:45:30+02:00 About the consistency of the energy scales of past and present instruments detecting cosmic rays above the ankle energy Codino, Antonio 2017 https://dx.doi.org/10.48550/arxiv.1710.06659 https://arxiv.org/abs/1710.06659 unknown arXiv arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ High Energy Astrophysical Phenomena astro-ph.HE FOS Physical sciences Preprint Article article CreativeWork 2017 ftdatacite https://doi.org/10.48550/arxiv.1710.06659 2022-04-01T10:16:28Z The energy spectrum of the cosmic radiation in the range 10$^{19}$-2.4$\times$10$^{21}$ eV has been recently predicted showing a rich and distinctive staircase profile. In order to check the prediction, the spectra measured by running and past experiments above 10$^{19}$ eV are examined. The computed spectrum compares more favourably with the Telescope Array, HiRes I and Yakutsk data rather than with the Auger data in the range (1-20)$\times$10$^{19}$ eV. Previous flux measurements by Haverah Park, {\sc sugar}, {\sc agasa} and Fly's Eye experiments are above the predicted spectrum in the limited band (1-30)$\times$10$^{19}$ eV. The flux measured by the Auger Group in the band (8-18)$\times$10$^{19}$ eV is below those of all other experiments and below the prediction. The energy scales of the instruments might be at the origin of the flux mismatch among the experiments. Accordingly, the energy scales of all the eleven instruments operating above 10$^{20}$ eV are examined and the major inconsistencies discerned. The paucity of events above 10$^{20}$ eV of the Auger experiment with respect to all others is by far the major puzzle emerging from this scrutiny. The Auger instrument recorded only 4 events above 10$^{20}$ eV with an exposure exceeding 42500 km$^{2}$ sr year while the Telescope Array recorded 13 events with an exposure of 8100 km$^{2}$ sr year. A tentative solution of this puzzle is ventilated. Report Yakutsk DataCite Metadata Store (German National Library of Science and Technology) Yakutsk
institution Open Polar
collection DataCite Metadata Store (German National Library of Science and Technology)
op_collection_id ftdatacite
language unknown
topic High Energy Astrophysical Phenomena astro-ph.HE
FOS Physical sciences
spellingShingle High Energy Astrophysical Phenomena astro-ph.HE
FOS Physical sciences
Codino, Antonio
About the consistency of the energy scales of past and present instruments detecting cosmic rays above the ankle energy
topic_facet High Energy Astrophysical Phenomena astro-ph.HE
FOS Physical sciences
description The energy spectrum of the cosmic radiation in the range 10$^{19}$-2.4$\times$10$^{21}$ eV has been recently predicted showing a rich and distinctive staircase profile. In order to check the prediction, the spectra measured by running and past experiments above 10$^{19}$ eV are examined. The computed spectrum compares more favourably with the Telescope Array, HiRes I and Yakutsk data rather than with the Auger data in the range (1-20)$\times$10$^{19}$ eV. Previous flux measurements by Haverah Park, {\sc sugar}, {\sc agasa} and Fly's Eye experiments are above the predicted spectrum in the limited band (1-30)$\times$10$^{19}$ eV. The flux measured by the Auger Group in the band (8-18)$\times$10$^{19}$ eV is below those of all other experiments and below the prediction. The energy scales of the instruments might be at the origin of the flux mismatch among the experiments. Accordingly, the energy scales of all the eleven instruments operating above 10$^{20}$ eV are examined and the major inconsistencies discerned. The paucity of events above 10$^{20}$ eV of the Auger experiment with respect to all others is by far the major puzzle emerging from this scrutiny. The Auger instrument recorded only 4 events above 10$^{20}$ eV with an exposure exceeding 42500 km$^{2}$ sr year while the Telescope Array recorded 13 events with an exposure of 8100 km$^{2}$ sr year. A tentative solution of this puzzle is ventilated.
format Report
author Codino, Antonio
author_facet Codino, Antonio
author_sort Codino, Antonio
title About the consistency of the energy scales of past and present instruments detecting cosmic rays above the ankle energy
title_short About the consistency of the energy scales of past and present instruments detecting cosmic rays above the ankle energy
title_full About the consistency of the energy scales of past and present instruments detecting cosmic rays above the ankle energy
title_fullStr About the consistency of the energy scales of past and present instruments detecting cosmic rays above the ankle energy
title_full_unstemmed About the consistency of the energy scales of past and present instruments detecting cosmic rays above the ankle energy
title_sort about the consistency of the energy scales of past and present instruments detecting cosmic rays above the ankle energy
publisher arXiv
publishDate 2017
url https://dx.doi.org/10.48550/arxiv.1710.06659
https://arxiv.org/abs/1710.06659
geographic Yakutsk
geographic_facet Yakutsk
genre Yakutsk
genre_facet Yakutsk
op_rights arXiv.org perpetual, non-exclusive license
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
op_doi https://doi.org/10.48550/arxiv.1710.06659
_version_ 1766236559481241600

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