Search Results - "Machado Payeras, A."
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A Search for Photons with Energies Above 2 × 1017 eV Using Hybrid Data from the Low-Energy Extensions of the Pierre Auger Observatory
Published in The Astrophysical journal (08-07-2022)“…Ultra-high-energy photons with energies exceeding 1017 eV offer a wealth of connections to different aspects of cosmic-ray astrophysics as well as to gamma-ray…”
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Searches for Ultra-High-Energy Photons at the Pierre Auger Observatory
Published in Universe (Basel) (01-11-2022)“…The Pierre Auger Observatory, which is the largest air-shower experiment in the world, offers unprecedented exposure to neutral particles at the highest…”
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Large-scale cosmic ray anisotropies with 19 years of data from the Pierre Auger Observatory
Published 09-08-2024“…Results are presented for the measurement of large-scale anisotropies in the arrival directions of ultra-high-energy cosmic rays detected at the Pierre Auger…”
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Impact of the Magnetic Horizon on the Interpretation of the Pierre Auger Observatory Spectrum and Composition Data
Published 01-08-2024“…JCAP07(2024)094 The flux of ultra-high energy cosmic rays reaching Earth above the ankle energy (5 EeV) can be described as a mixture of nuclei injected by…”
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Testing Hadronic-Model Predictions of Depth of Maximum of Air-Shower Profiles and Ground-Particle Signals using Hybrid Data of the Pierre Auger Observatory
Published 03-05-2024“…Phys. Rev. D 109 (2024) 102001 We test the predictions of hadronic interaction models regarding the depth of maximum of air-shower profiles, $X_{max}$, and…”
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Constraints on metastable superheavy dark matter coupled to sterile neutrinos with the Pierre Auger Observatory
Published 14-03-2024“…Phys. Rev. D 109 L081101 (2024) Dark matter particles could be superheavy, provided their lifetime is much longer than the age of the universe. Using the…”
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The Pierre Auger Observatory Open Data
Published 28-09-2023“…The Pierre Auger Collaboration has embraced the concept of open access to their research data since its foundation, with the aim of giving access to the widest…”
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Search for UHE Photons from Gravitational Wave Sources with the Pierre Auger Observatory
Published 20-07-2023“…ApJ 952 (2023) 91 A search for time-directional coincidences of ultra-high-energy (UHE) photons above 10 EeV with gravitational wave (GW) events from the…”
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Constraining the sources of ultra-high-energy cosmic rays across and above the ankle with the spectrum and composition data measured at the Pierre Auger Observatory
Published 17-04-2023“…JCAP05(2023)024 In this work we present the interpretation of the energy spectrum and mass composition data as measured by the Pierre Auger Collaboration above…”
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Limits to gauge coupling in the dark sector set by the non-observation of instanton-induced decay of Super-Heavy Dark Matter in the Pierre Auger Observatory data
Published 15-12-2022“…Phys.Rev.Lett. 130 (2023) 6, 061001 Instantons, which are non-perturbative solutions to Yang-Mills equations, provide a signal for the occurrence of quantum…”
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Searches for Ultra-High-Energy Photons at the Pierre Auger Observatory
Published 24-10-2022“…Universe 8 (2022) 579 The Pierre Auger Observatory, being the largest air-shower experiment in the world, offers an unprecedented exposure to neutral particles…”
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Arrival Directions of Cosmic Rays above 32 EeV from Phase One of the Pierre Auger Observatory
Published 05-09-2022“…ApJ 935 170 (2022) A promising energy range to look for angular correlation between cosmic rays of extragalactic origin and their sources is at the highest…”
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Testing effects of Lorentz invariance violation in the propagation of astroparticles with the Pierre Auger Observatory
Published 19-01-2022“…JCAP 01 (2022) 023 Lorentz invariance violation (LIV) is often described by dispersion relations of the form $E_i^2=m_i^2+p_i^2+\delta_{i,n} E^{2+n}$ with…”
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Extraction of the Muon Signals Recorded with the Surface Detector of the Pierre Auger Observatory Using Recurrent Neural Networks
Published 01-08-2021“…JINST 16 P07016 (2021) The Pierre Auger Observatory, at present the largest cosmic-ray observatory ever built, is instrumented with a ground array of 1600…”
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The FRAM robotic telescope for atmospheric monitoring at the Pierre Auger Observatory
Published 26-07-2021“…JINST 16 P06027 (2021) FRAM (F/Photometric Robotic Atmospheric Monitor) is a robotic telescope operated at the Pierre Auger Observatory in Argentina for the…”
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Design and implementation of the AMIGA embedded system for data acquisition
Published 20-07-2021“…JINST 16 T07008 (2021) The Auger Muon Infill Ground Array (AMIGA) is part of the AugerPrime upgrade of the Pierre Auger Observatory. It consists of particle…”
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Measurement of the fluctuations in the number of muons in extensive air showers with the Pierre Auger Observatory
Published 27-04-2021“…Phys. Rev. Lett. 126, 152002 (2021) We present the first measurement of the fluctuations in the number of muons in extensive air showers produced by ultrahigh…”
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Calibration of the underground muon detector of the Pierre Auger Observatory
Published 14-04-2021“…JINST (2021) 16 P04003 To obtain direct measurements of the muon content of extensive air showers with energy above $10^{16.5}$ eV, the Pierre Auger…”
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Design, upgrade and characterization of the silicon photomultiplier front-end for the AMIGA detector at the Pierre Auger Observatory
Published 25-01-2021“…JINST 16 (2021) P01026 AMIGA (Auger Muons and Infill for the Ground Array) is an upgrade of the Pierre Auger Observatory to complement the study of…”
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Deep-Learning based Reconstruction of the Shower Maximum $X_{\mathrm{max}}$ using the Water-Cherenkov Detectors of the Pierre Auger Observatory
Published 08-01-2021“…JINST 16 P07019 (2021) The atmospheric depth of the air shower maximum $X_{\mathrm{max}}$ is an observable commonly used for the determination of the nuclear…”
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