Search Results - "Theodoro, V. M"
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The Pierre Auger Cosmic Ray Observatory
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (21-10-2015)“…The Pierre Auger Observatory, located on a vast, high plain in western Argentina, is the world׳s largest cosmic ray observatory. The objectives of the…”
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Testing Hadronic Interactions at Ultrahigh Energies with Air Showers Measured by the Pierre Auger Observatory
Published in Physical review letters (04-11-2016)“…Ultrahigh energy cosmic ray air showers probe particle physics at energies beyond the reach of accelerators. Here we introduce a new method to test hadronic…”
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Measurement of the Radiation Energy in the Radio Signal of Extensive Air Showers as a Universal Estimator of Cosmic-Ray Energy
Published in Physical review letters (14-06-2016)“…We measure the energy emitted by extensive air showers in the form of radio emission in the frequency range from 30 to 80 MHz. Exploiting the accurate energy…”
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The Pierre Auger Observatory Upgrade
Published in EPJ Web of Conferences (01-01-2017)“…It is planned to operate the Pierre Auger Observatory until at least the end of 2024. An upgrade of the experiment has been proposed in order to provide…”
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The Pierre Auger Observatory status and latest results
Published in EPJ Web of Conferences (01-01-2017)“…The Pierre Auger Observatory, in Argentina, is the present flagship experiment studying ultrahigh-energy cosmic rays (UHECRs). Facing the challenge due to low…”
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Exploiting the radio signal from air showers: the AERA progress
Published in EPJ Web of Conferences (01-01-2017)“…We present the lastest results and status of the Auger Engineering Radio Array (AERA), located within the Pierre Auger Observatory. AERA, with more than 150…”
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Astrophysical interpretation of Pierre Auger Observatory measurements of the UHECR energy spectrum and mass composition
Published in EPJ Web of Conferences (01-01-2017)“…We present a combined fit of a simple astrophysical model of UHECR sources to both the energy spectrum and mass composition data measured by the Pierre Auger…”
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Search for photons with energies above 10$^{18}$ eV using the hybrid detector of the Pierre Auger Observatory
Published 28-09-2020“…JCAP04(2017)009; JCAP09(2020)E02 A search for ultra-high energy photons with energies above 1 EeV is performed using nine years of data collected by the Pierre…”
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Calibration of the Logarithmic-Periodic Dipole Antenna (LPDA) Radio Stations at the Pierre Auger Observatory using an Octocopter
Published 13-06-2018“…JINST 12 (2017) T10005 An in-situ calibration of a logarithmic periodic dipole antenna with a frequency coverage of 30 MHz to 80 MHz is performed. Such…”
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Combined fit of spectrum and composition data as measured by the Pierre Auger Observatory
Published 26-02-2018“…JCAP04(2017)038 We present a combined fit of a simple astrophysical model of UHECR sources to both the energy spectrum and mass composition data measured by…”
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Indication of anisotropy in arrival directions of ultra-high-energy cosmic rays through comparison to the flux pattern of extragalactic gamma-ray sources
Published 06-02-2018“…Aab. et al., The Astrophysical Journal Letters, 853:L29 (2018) A new analysis of the dataset from the Pierre Auger Observatory provides evidence for anisotropy…”
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Muon Counting using Silicon Photomultipliers in the AMIGA detector of the Pierre Auger Observatory
Published 04-10-2017“…JINST 12 (2017) P03002 AMIGA (Auger Muons and Infill for the Ground Array) is an upgrade of the Pierre Auger Observatory designed to extend its energy range of…”
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Spectral Calibration of the Fluorescence Telescopes of the Pierre Auger Observatory
Published 02-10-2017“…Astroparticle Physics 95 (2017) 44-56 We present a novel method to measure precisely the relative spectral response of the fluorescence telescopes of the…”
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Multi-resolution anisotropy studies of ultrahigh-energy cosmic rays detected at the Pierre Auger Observatory
Published 20-06-2017“…JCAP 06 (2017) 026 We report a multi-resolution search for anisotropies in the arrival directions of cosmic rays detected at the Pierre Auger Observatory with…”
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A targeted search for point sources of EeV photons with the Pierre Auger Observatory
Published 21-03-2017“…The Astrophysical Journal Letters, 837:L25 (7pp), 2017 March 10 Simultaneous measurements of air showers with the fluorescence and surface detectors of the…”
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Ultrahigh-energy neutrino follow-up of Gravitational Wave events GW150914 and GW151226 with the Pierre Auger Observatory
Published 13-01-2017“…Phys. Rev. D 94, 122007 (2016) On September 14, 2015 the Advanced LIGO detectors observed their first gravitational-wave (GW) transient GW150914. This was…”
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Evidence for a mixed mass composition at the `ankle' in the cosmic-ray spectrum
Published 22-11-2016“…Phys. Lett. B762 (2016) 288-295 We report a first measurement for ultra-high energy cosmic rays of the correlation between the depth of shower maximum and the…”
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Testing Hadronic Interactions at Ultrahigh Energies with Air Showers Measured by the Pierre Auger Observatory
Published 31-10-2016“…Phys. Rev. Lett. 117, 192001 (2016) Ultrahigh energy cosmic ray air showers probe particle physics at energies beyond the reach of accelerators. Here we…”
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Search for ultrarelativistic magnetic monopoles with the Pierre Auger Observatory
Published 03-10-2016“…Phys. Rev. D 94, 082002 (2016) We present a search for ultra-relativistic magnetic monopoles with the Pierre Auger Observatory. Such particles, possibly a…”
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Prototype muon detectors for the AMIGA component of the Pierre Auger Observatory
Published 12-05-2016“…JINST 11 (2016) P02012 Auger Muons and Infill for the Ground Array) is an upgrade of the Pierre Auger Observatory to extend its range of detection and to…”
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