Luis Miguel Domingues Mendes
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View article: Measuring the muon content of inclined air showers using AERA and the water-Cherenkov detectors of the Pierre Auger Observatory
Measuring the muon content of inclined air showers using AERA and the water-Cherenkov detectors of the Pierre Auger Observatory Open
We present a novel approach for assessing the muon content of air showers with large zenith angles on a combined analysis of their radio emission and particle footprint. We use the radiation energy reconstructed by the Auger Engineering Ra…
View article: Science Prospects for the Southern Wide-field Gamma-ray Observatory: SWGO
Science Prospects for the Southern Wide-field Gamma-ray Observatory: SWGO Open
Ground-based gamma-ray astronomy is now well established as a key observational approach to address critical topics at the frontiers of astroparticle physics and high-energy astrophysics. Whilst the field of TeV astronomy was once dominate…
View article: Towards Energy-Aware LoRaWAN ADR for Mobile Scenarios Through Dynamic Margin Control
Towards Energy-Aware LoRaWAN ADR for Mobile Scenarios Through Dynamic Margin Control Open
In LoRaWAN networks, the ADR mechanism plays an essential role in dynamically adjusting the data rate to optimize energy consumption and network efficiency. However, since it is not suitable for mobile environments, alternative solutions s…
View article: Search for a diffuse flux of photons with energies above tens of PeV at the Pierre Auger Observatory
Search for a diffuse flux of photons with energies above tens of PeV at the Pierre Auger Observatory Open
Diffuse photons of energy above 0.1 PeV, produced through the interactions between cosmic rays and either interstellar matter or background radiation fields, are powerful tracers of the distribution of cosmic rays in the Galaxy. Furthermor…
View article: Update of the Brazilian Participation in the Next-Generation Collider Experiments
Update of the Brazilian Participation in the Next-Generation Collider Experiments Open
This proposal outlines the future plans of the Brazilian High-Energy Physics (HEP) community for upcoming collider experiments. With the construction of new particle colliders on the horizon and the ongoing operation of the High-Luminosity…
View article: From Safeguards Application to Fundamental Physics: Advancements in Reactor Neutrino Detection with the ν-Angra Experiment
From Safeguards Application to Fundamental Physics: Advancements in Reactor Neutrino Detection with the ν-Angra Experiment Open
Operating on a surface with high noise rates and requiring susceptible, yet small-scale detectors, the Neutrinos-Angra detector is an excellent platform for technological development and expertise in new detection methods. This report deta…
View article: Constraining models for the origin of ultra-high-energy cosmic rays with a novel combined analysis of arrival directions, spectrum, and composition data measured at the Pierre Auger Observatory
Constraining models for the origin of ultra-high-energy cosmic rays with a novel combined analysis of arrival directions, spectrum, and composition data measured at the Pierre Auger Observatory Open
The combined fit of the measured energy spectrum and shower maximum depth distributions of ultra-high-energy cosmic rays is known to constrain the parameters of astrophysical models with homogeneous source distributions. Studies of the dis…
View article: Simulation of PeV atmospheric showers for SWGO
Simulation of PeV atmospheric showers for SWGO Open
The recent discovery of PeV gamma-ray emission especially from the LHAASO observatory, located in the Northern hemisphere, boosted the relevance of observing the Southern sky at such
\nenergies. SWGO (SouthernWide-Field Gamma-Ray Observato…
View article: The Mercedes water Cherenkov detector: a multi-PMT shallow tank design proposal for ground-based gamma-ray observatories
The Mercedes water Cherenkov detector: a multi-PMT shallow tank design proposal for ground-based gamma-ray observatories Open
We present the concept of a shallow, single-layer, multi-PMT water Cherenkov detector (WCD) unit for ground-based gamma-ray astronomy. The design was developed as part of the R&D activities for SWGO, as a candidate WCD unit solution for th…
View article: Mass Composition and More: Results from the Auger Engineering Radio Array
Mass Composition and More: Results from the Auger Engineering Radio Array Open
\n Contains fulltext :\n 295369.pdf (Publisher’s version ) (Open Access)\n
View article: $S_b$ for gamma/hadron separation in SWGO
$S_b$ for gamma/hadron separation in SWGO Open
The Southern Wide-field Gamma-ray Observatory (SWGO) is an international collaboration working on a ground-based gamma-ray observatory that will be located in the southern hemisphere. A crucial step in the analysis is to identify the showe…
View article: Estimating the potential of SWGO to measure the composition-dependent behaviour of the CR anisotropy
Estimating the potential of SWGO to measure the composition-dependent behaviour of the CR anisotropy Open
Current cosmic ray anisotropy experiments have shown a significant swing in both the direction and the amplitude of the dipole at energies around tens of TeV. Due to the charged nature of these particles, and the presence of magnetic field…
View article: An update on site search activities for SWGO
An update on site search activities for SWGO Open
The Southern Wide-field Gamma-ray Observatory (SWGO) is a project by scientists and engineers from 14 countries and 78 institutions to design and build the first wide-field, ground-based gamma-ray observatory in the Southern Hemisphere, wi…
View article: Dark Matter searches in Dwarf Galaxies with the Southern Wide-field Gamma-ray Observatory
Dark Matter searches in Dwarf Galaxies with the Southern Wide-field Gamma-ray Observatory Open
Dark matter is thought to make up most of the matter density of the Universe, yet its true nature remains uncertain. Among dark matter theories, Weakly Interacting Massive Particles (WIMPs) are a prominent candidate for dark matter because…
View article: Status of the SWGO air shower reconstruction using a template-based likelihood method
Status of the SWGO air shower reconstruction using a template-based likelihood method Open
The Southern Wide-field Gamma-ray Observatory (SWGO) is a proposed facility for ground-based gamma-ray astronomy. It will consist of an array of water Cherenkov detectors to detect astrophysical gamma-rays mainly in the range of hundreds o…
View article: Manufacture Details of a SWGO Double-Layer Tank Design - Water Cherenkov Detector Prototype
Manufacture Details of a SWGO Double-Layer Tank Design - Water Cherenkov Detector Prototype Open
Water-Cherenkov detectors (WCD) have been manufactured in Australia by the company AQUAMATE as part of the R&D activities for SWGO. They consist of a steel tank frame with a bladder on its interior satisfying the SWGO double-layer tank des…
View article: Wavelength-shifting light traps for SWGO and other applications
Wavelength-shifting light traps for SWGO and other applications Open
Wavelength-shifting (WLS) materials contain molecules that absorb light and\nreemit at longer wavelengths. They can be used for light detection because they\nprovide a large effective area for low cost and they are able to efficiently\ntra…
View article: Low-cost Oceanographic Buoy for Evaluating the Mechanical Resistance of a Water Cherenkov Detector to be deployed on a high-altitude Natural Lake in Peru.
Low-cost Oceanographic Buoy for Evaluating the Mechanical Resistance of a Water Cherenkov Detector to be deployed on a high-altitude Natural Lake in Peru. Open
The SWGO Collaboration is evaluating the possibility of deploying Water Cherenkov Detectors (WCD) in a high-altitude natural lake. For that, the first challenge is to build a bladder strong enough that could be used as a WCD inside a natur…
View article: Simulations of antenna response for the Radio Detector of the Pierre Auger Observatory
Simulations of antenna response for the Radio Detector of the Pierre Auger Observatory Open
After more than 15 years of successful operation, the Pierre Auger Observatory is currently undergoing a major upgrade called AugerPrime. The aim is to study the mass composition of ultra-high-energy cosmic rays. Part of the upgrade progra…
View article: Measuring the muon content of inclined air showers using AERA and the particle detector of the Pierre Auger Observatory
Measuring the muon content of inclined air showers using AERA and the particle detector of the Pierre Auger Observatory Open
A first measurement of the muon content of air showers using hybrid measurements combining radio and particle detection is presented. For inclined air showers with zenith angles above 60°, the water-Cherenkov detector (WCD) of the Pierre A…
View article: Search for Ultra-high-energy Photons from Gravitational Wave Sources with the Pierre Auger Observatory
Search for Ultra-high-energy Photons from Gravitational Wave Sources with the Pierre Auger Observatory Open
A search for time-directional coincidences of ultra-high-energy (UHE) photons above 10 EeV with gravitational wave (GW) events from the LIGO/Virgo runs O1 to O3 is conducted with the Pierre Auger Observatory. Due to the distinctive propert…
View article: Absolute calibration and investigation of ageing of the AERA radio detectors
Absolute calibration and investigation of ageing of the AERA radio detectors Open
\n Contains fulltext :\n 295339.pdf (Publisher’s version ) (Open Access)\n
View article: The Depth of the Shower Maximum of Air Showers Measured with AERA
The Depth of the Shower Maximum of Air Showers Measured with AERA Open
The Auger Engineering Radio Array (AERA) is an array of $153$ radio antennas spanning an area of $17$ km$^2$, currently the largest of its kind, that probes the nature of ultra-high energy cosmic rays at energies around the transition from…
View article: Expected performance of the AugerPrime Radio Detector
Expected performance of the AugerPrime Radio Detector Open
The Auger Radio Detector (RD) will increase the sky coverage and overall aperture for mass-sensitive measurements of ultra-high-energy cosmic rays with the Pierre Auger Observatory. The installation of over 1600 dual-polarized short aperio…
View article: Search for photons above 10<sup>19</sup> eV with the surface detector of the Pierre Auger Observatory
Search for photons above 10<sup>19</sup> eV with the surface detector of the Pierre Auger Observatory Open
We use the surface detector of the Pierre Auger Observatory to search for air showers initiated by photons with an energy above 10 19 eV. Photons in the zenith angle range from 30 ∘ to 60 ∘ can be identified in the overwhelming background …