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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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 |
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High Energy Astrophysical Phenomena astro-ph.HE FOS Physical sciences |
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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 |
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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 |
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Yakutsk |
geographic_facet |
Yakutsk |
genre |
Yakutsk |
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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 |
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1766236559481241600 |