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The recent progress in the radio detection technique for air showers paves the path to future cosmic-ray radio detectors. Digital radio arrays allow for a measurement of the air-shower energy and depth of its maximum with a resolution…

We describe a method of reconstructing air showers induced by cosmic rays using deep learning techniques. We simulate an observatory consisting of ground-based particle detectors with fixed locations on a regular grid. The detector's…

Instrumentation and Methods for Astrophysics · Physics 2017-11-01 Martin Erdmann , Jonas Glombitza , David Walz

We have developed a macroscopic description of coherent electro-magnetic radiation from air showers initiated by ultra-high energy cosmic rays due to the presence of the geo-magnetic field. This description offers a simple and direct…

Astrophysics · Physics 2008-11-26 O. Scholten , K. Werner , F. Rusydi

The reconstruction of very inclined air showers is a new challenge for next-generation radio experiments such as the AugerPrime radio upgrade, BEACON, and GRAND, which focus on the detection of ultra-high-energy particles. To tackle this,…

High Energy Astrophysical Phenomena · Physics 2024-08-01 Marion Guelfand , Simon Chiche , Kumiko Kotera , Simon Prunet , Tanguy Pierog

We report the first direct measurement of the overall characteristics of microwave radio emission from extensive air showers. Using a trigger provided by the KASCADE-Grande air shower array, the signals of the microwave antennas of the…

For fifty years, cosmic-ray air showers have been detected by their radio emission. We present the first laboratory measurements that validate electrodynamics simulations used in air shower modeling. An experiment at SLAC provides a beam…

This proceeding gives a summary of the current status and open questions of the radio technique for cosmic-ray air showers, assuming that the reader is already familiar with the principles. It includes recent results of selected experiments…

High Energy Astrophysical Phenomena · Physics 2017-03-20 Frank G. Schröder

Radio pulses are emitted during the development of air showers, where air showers are generated by ultra-high energy cosmic rays entering the Earth's atmosphere. These nanosecond short pulses are presently investigated by various…

The sensitivity to the mass composition as well as the reconstruction of the energy of the primary particle are explored here by leveraging the features of the radio lateral distribution function. For the purpose of this analysis, a set of…

When modern efforts for radio detection of cosmic rays started about a decade ago, hopes were high but the true potential was unknown. Since then, we have achieved a detailed understanding of the radio emission physics and have consequently…

Instrumentation and Methods for Astrophysics · Physics 2018-02-14 Tim Huege

Radio detection is now an established technique for the study of ultra-high-energy (UHE) cosmic rays with energies above $\sim10^{17}$ eV. The next-generation of radio experiments aims to extend this technique to the observation of UHE…

High Energy Astrophysical Phenomena · Physics 2025-05-14 Marion Guelfand , Valentin Decoene , Olivier Martineau-Huynh , Simon Prunet , Matías Tueros , Oscar Macias , Aurélien Benoit-Lévy

We present a macroscopic calculation of coherent electro-magnetic radiation from air showers initiated by ultra-high energy cosmic rays, based on currents obtained from three-dimensional Monte Carlo simulations of air showers in a realistic…

High Energy Astrophysical Phenomena · Physics 2015-06-03 Klaus Werner , Krijn D. De Vries , Olaf Scholten

The Pierre Auger Collaboration is exploring the potential of radio-detection techniques to measure the extensive air showers. The main advantage of these setups is the possibility to cover a large area with no atmospheric attenuation and…

Instrumentation and Methods for Astrophysics · Physics 2019-08-13 K. Louedec

The mass composition of high energy cosmic rays above $10^{17}$ eV is a crucial issue to solve some open questions in astrophysics such as the acceleration and propagation mechanisms. Unfortunately, the standard procedures to identify the…

Astrophysics · Physics 2008-11-26 F. Catalani , J. A. Chinellato , V. de Souza , J. Takahashi , G. M. S. Vasconcelos

The shape of the longitudinal development of the showers generated in the atmosphere by very high energy cosmic ray particles encodes information about the mass composition of the flux, and about the properties of hadronic interactions that…

High Energy Astrophysical Phenomena · Physics 2021-05-19 Paolo Lipari

In this paper, we will discuss the prospects of deducing the proton-air cross section from fluorescence telescope measurements of extensive air showers. As it is not possible to observe the point of first interaction $X_{\rm 1}$ directly,…

Astrophysics · Physics 2008-11-26 Ralf Ulrich , Johannes Blümer , Ralph Engel , Fabian Schüssler , Michael Unger

Composition measurement of cosmic rays (CRs) around the knee of the CR energy spectrum is crucial for studying the processes of particle acceleration and propagation of Galactic CRs. The Square Kilometer Array (KM2A) of Large High Altitude…

High Energy Astrophysical Phenomena · Physics 2024-07-19 Xishui Tian , Zhuo Li , Quanbu Gou , Hengying Zhang , Huihai He , Cunfeng Feng , Giuseppe Di Sciascio

Radio detection of cosmic-ray (CR) induced extensive air showers with digital antenna arrays is a matured technique by now. At the Pierre Auger Observatory, the Auger Engineering Radio Array (AERA) has been measuring air-shower signals in…

Instrumentation and Methods for Astrophysics · Physics 2024-11-21 Max Büsken

The emission of radio waves from air showers has been attributed to the so-called geomagnetic emission process. At frequencies around 50 MHz this process leads to coherent radiation which can be observed with rather simple setups. The…

High Energy Astrophysical Phenomena · Physics 2014-07-03 Pierre Auger Collaboration

The fluorescence technique has been successfully used to detect ultrahigh energy cosmic rays by indirect measurements. The underlying idea is that the number of charged particles in the atmospheric shower, i.e, its longitudinal profile, can…

Astrophysics · Physics 2007-05-23 Vitor de Souza , Jeferson A. Ortiz , Gustavo Medina-Tanco , Federico Sanchez