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Highlights from the Pierre Auger Observatory

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arxiv 2312.14673 v1 pith:76CQICGW submitted 2023-12-22 astro-ph.HE astro-ph.IM

classification astro-ph.HEastro-ph.IM
keywords observatoryaugerpierreenergyphaseaugerprimecosmicdetectors
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

The Pierre Auger Observatory is a unique facility designed to study ultra-high energy cosmic rays, with energies up to 10$^{20}$ eV and beyond. The Observatory is located in Argentina and comprises more than 1600 water Cherenkov detectors spread over an area of 3000 square kilometers overlooked by Fluorescence detectors. The first phase of the Observatory's data-taking began in 2004 and continued until the end of 2021. In this contribution, the results from the Phase~I data analysis of the Pierre Auger Observatory are presented. They include, among others, measurements of the cosmic-ray energy spectrum, composition, and arrival direction anisotropy. The Phase~I results from the Pierre Auger Observatory provide major advances in the understanding of the ultra-high energy cosmic ray phenomena and lay the foundation for second-phase studies with the upgraded AugerPrime detector. The status of the AugerPrime upgrade and its performance will be also discussed.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Bounds on Lorentz invariance violation from muon fluctuations at the Pierre Auger Observatory

    astro-ph.HE 2026-02 conditional novelty 6.0 of 10

    Muon-count fluctuations in Auger air showers exclude first-order Lorentz invariance violation in the hadronic sector down to η ≈ −1.3×10⁻⁶ at the highest confidence level reported.

  2. Interpreting the KM3-230213A PeV Neutrino Event via Vector Dark Matter Decay and Its Multi-Messenger Signatures

    hep-ph 2025-07 conditional novelty 4.0 of 10

    A U(1)_X vector dark matter model explains the KM3-230213A PeV neutrino via DM decay and predicts a cosmic string gravitational wave background consistent with PTA observations, but with several parameters fitted to the data.

  3. UHECR measurements and physics at man-made accelerators: mutual constraints

    hep-ph 2024-12 unverdicted

    A review of the mutual constraints between UHECR air-shower observations and accelerator measurements, centered on the muon puzzle and future experimental tests.

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