The Mass of Cosmic Rays of Ultra High Energy
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arXiv
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866909951522242560 |
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| author | Watson, A A |
| author_facet | Watson, A A |
| contents | A review of several analyses is presented that forces the conclusion that the mass composition of the highest-energy cosmic rays is not proton-dominated. This deduction, combined with the use of a modern hadronic interaction model, should lead to a re-evaluation of the energy spectrum reported by the Telescope Collaboration that may well bring that measurement, and the corresponding one from the Pierre Auger Observatory, into better agreement. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2508_11378 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | The Mass of Cosmic Rays of Ultra High Energy Watson, A A High Energy Astrophysical Phenomena A review of several analyses is presented that forces the conclusion that the mass composition of the highest-energy cosmic rays is not proton-dominated. This deduction, combined with the use of a modern hadronic interaction model, should lead to a re-evaluation of the energy spectrum reported by the Telescope Collaboration that may well bring that measurement, and the corresponding one from the Pierre Auger Observatory, into better agreement. |
| title | The Mass of Cosmic Rays of Ultra High Energy |
| topic | High Energy Astrophysical Phenomena |
| url | https://arxiv.org/abs/2508.11378 |