A5043890285- Astrophysics and Cosmic Phenomena
- Dark Matter and Cosmic Phenomena
- Neutrino Physics Research
- Particle physics theoretical and experimental studies
- Radio Astronomy Observations and Technology
- Particle Detector Development and Performance
- Gamma-ray bursts and supernovae
- High-Energy Particle Collisions Research
- Atmospheric Ozone and Climate
- Pulsars and Gravitational Waves Research
- Ionosphere and magnetosphere dynamics
- Particle Accelerators and Free-Electron Lasers
- Photocathodes and Microchannel Plates
- Atmospheric aerosols and clouds
- Astronomical Observations and Instrumentation
- Radiation Detection and Scintillator Technologies
- Radiation Therapy and Dosimetry
- Solar and Space Plasma Dynamics
- History and Developments in Astronomy
- Cosmology and Gravitation Theories
- Calibration and Measurement Techniques
- Atmospheric and Environmental Gas Dynamics
- Noncommutative and Quantum Gravity Theories
- Computational Physics and Python Applications
- Lightning and Electromagnetic Phenomena
Czech Academy of Sciences, Institute of Physics
2016-2025
Universidad Nacional de La Plata
2011-2023
Karlsruhe Institute of Technology
2021-2023
Institute of Astronomy and Space Physics
2011-2023
Consejo Nacional de Investigaciones Científicas y Técnicas
2011-2023
University of Buenos Aires
2011-2023
Instituto de Tecnologías en Detección y Astropartículas
2016-2023
National University of General San Martín
2016-2023
National Technological University
2016-2023
Institute of Scientific and Technical Research for Defense
2016-2023
Abstract The SST-1M (webpage: https://sst-1m.space ) is a Small-Sized Telescope (SST) designed to provide cost-effective and high-performance solution for gamma-ray astrophysics, particularly energies beyond few TeV. goal integrate this telescope into an array of similar instruments, leveraging its lightweight design, earthquake resistance, established Davies-Cotton configuration. Additionally, optical system function without protective dome, allowing it withstand the harsh atmospheric...
Muon counting is an effective strategy for discriminating between gamma- and hadron-initiated air showers. However, their detection, which requires shielded detectors, highly expensive challenging to implement across large, environmentally sensitive areas. This work allowed us establish the first time that at PeV energies gamma/hadron discriminator based on new <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mi>L</a:mi><a:mi>C</a:mi><a:mi>m</a:mi></a:math> variable...
We assume an extreme scenario, in which the arriving cosmic rays are composed of only iron nuclei at energies above $10^{19.6}\,\text{eV}\simeq40\,\text{EeV}$, while allowing a freedom scale depth shower maximum ($X_{\rm{max}}$) and preserving elongation rate fluctuations $X_{\rm{max}}$ predicted by models hadronic interactions. derive shift for QGSJet II-04 Sibyll 2.3d using public data from Pierre Auger Observatory. then propose new mass-composition model energy evolution four primary...
Data from multiple experiments suggest that the current interaction models used in Monte Carlo simulations do not correctly reproduce hadronic interactions air showers produced by ultra-high-energy cosmic rays (UHECR). We have created a large library of UHECR where at highest energies are slightly modified various ways - but always within constraints accelerator data, without any abrupt changes with energy and assuming specific mechanism or dramatically new physics ultra-high energies....
We assume an extreme scenario, in which the arriving cosmic rays are composed of only iron nuclei at energies above 10^19.6 eV ≃ 40 EeV, while allowing a freedom scale depth shower maximum (𝑋max) and preserving elongation rate fluctuations 𝑋max predicted by models hadronic interactions. derive shift for QGSJet II-04 Sibyll 2.3d using public data from Pierre Auger Observatory. then propose new mass-composition model energy evolution four primary species ultra-high fitting publicly-available...
The concept of a small, single-layer water Cherenkov detector, with three photomultiplier tubes (PMTs), placed at its bottom in $120^{\circ}$ star configuration (\emph{Mercedes} Water Detector) is presented. PMTs are near the lateral walls stations an adjustable inclination and may be installed inside or outside volume. To illustrate technical viability this obtain first-order estimation cost, engineering design was elaborated. sensitivity these to low energy Extensive Air Shower (EAS)...
A new concept for the direct measurement of muons in air showers is presented. The based on resistive plate chambers (RPCs), which can directly measure with very good space and time resolution. muon detector shielded by placing it under another able to absorb electromagnetic component such as a water-Cherenkov detector, commonly used shower arrays. combination two detectors single, compact unit provides unique that opens rich possibilities study showers.
We present a new method to explore simple ad-hoc adjustments the predictions of hadronic interaction models improve their consistency with observed two-dimensional distributions depth shower maximum, $X_\text{max}$, and signal at ground level, as function zenith angle. The relies on assumption that mass composition is same all angles, while atmospheric development attenuation depend in correlated way. In work, for each three leading LHC-tuned models, we allow global shift $\Delta...
Having implemented the option to make ad-hoc modifications of cross-section, multiplicity, and elasticity hadronic interactions during development cosmic-ray showers into CORSIKA simulation package in a consistent way for both primary protons arbitrary nuclei, we can study impact these on variety observables different primaries. The are generic, without any reference specific mechanism. ranges parameters only restricted by existing experimental data from accelerators nuclear emulsions....
The Southern Wide-field Gamma-ray Observatory (SWGO) is a project for new generation of extensive air shower front detectors, based primarily on the water Cherenkov technique, to be located in Hemisphere, where no other instrument that kind currently operating TeV gamma-ray energy range. reference configuration SWGO foresees an array about 6,000 tanks deployed over circle 320 m diameter, 80,000 m$^2$ area. In order reach sensitivity at energies around and below 1 competitive with current...
Data from multiple experiments suggest that the current interaction models used in Monte Carlo simulations do not correctly reproduce hadronic interactions air showers produced by ultra-high-energy cosmic rays (UHECR), particular – but limited to production of muons during showers. We have created a large library UHECR where at highest energies are slightly modified various ways always within constraints accelerator data, without any abrupt changes with energy and assuming specific mechanism...
Complementing the overview contribution about whitepaper on ultra-high-energy cosmic rays (UHECR) prepared for Snowmass community survey in U.S. [Astroparticle Physics 149 (2023) 102819 - arXiv:2205.05845], this focuses Chapter 6, ‘Instrumentation Roadmap’ UHECR physics next decades. In addition to an increase statistics, a higher measurement accuracy of cosmic-ray air showers is needed answer open questions regarding astrophysics and particle related UHECR. The boost exposure can be...
As part of the US "Snowmass" community planning exercise, UHECR has come together to write a comprehensive white paper discussing recent progress and open questions field, as they relate overarching goals particle astroparticle physics. The document outlines strategies recommendations for answering these over next two decades. It also proposes an integrated timeline, which considers expected be achieved by upgraded Pierre Auger Observatory Telescope Array experiment in this decade, need set...
Abstract The direction and magnitude of the dipole anisotropy ultra-high-energy cosmic rays with energies above 8 EeV observed by Pierre Auger Observatory indicate their extragalactic origin. on Earth does not necessarily need to correspond cosmic-ray flux due effects propagation in Galactic magnetic field. We estimate size these via numerical simulations using CRPropa 3 package. Jansson-Farrar Terral-Ferrière models field are used propagate particles within Galaxy. identify allowed...
We present a new method to infer the mass composition of ultra-high energy cosmic rays performing simultaneous modifications simulated depth shower maximu ($X_{\rm max}$) and ground signal. introduce likelihood fit two-dimensional distributions "hybrid observables", $X_{\rm max}$ signal induced by muons electromagnetic particles at different zenith angles. With this method, fractions primary are simultaneously estimated together with shift multiplicative rescaling parameters muon signals in...
Large surface arrays of current cosmic ray experiments measure the signals electromagnetic or muonic components their combination. The correction to zenith angle (the attenuation curve) has be taken into account before signal is converted shower energy. Either Monte Carlo simulations indirect estimation using collected data (Constant Intensity Cut method) can used. However, assumptions composition isotropy used for determination curve still influence final physics results such as energy...
The surface detection of gamma-ray showers has the advantage a very high duty cycle and wide field-of-view observations across sky in comparison to Cherenkov telescopes. scientific potential wide-field observatory already been demonstrated by experiments HAWC, ARGO LHAASO Northern hemisphere. Southern Wide-field Gamma-ray Observatory (SWGO) will be located at site South America an altitude above 4400 m a.s.l., cover energy range from 100s GeV TeV. current status ongoing R&D phase future SWGO...