The Renaissance of Radio Detection of Cosmic Rays



Título del documento: The Renaissance of Radio Detection of Cosmic Rays
Revista: Brazilian journal of physics
Base de datos: PERIÓDICA
Número de sistema: 000379551
ISSN: 0103-9733
Autores: 1
Instituciones: 1Karlsruhe Institute of Technology, Institute for Nuclear Physics, Karlsruhe. Alemania
Año:
Periodo: Oct
Volumen: 44
Número: 5
Paginación: 520-529
País: Brasil
Idioma: Inglés
Tipo de documento: Conferencia o discurso
Enfoque: Analítico, descriptivo
Resumen en inglés Nearly 50 years ago, the first radio signals from cosmic ray air showers were detected. After many successful studies, however, research ceased not even 10 years later. Only a decade ago, the field was revived with the application of powerful digital signal processing techniques. Since then, the detection technique has matured, and we are now in a phase of transition from small-scale experiments accessing energies below 1018 eV to experiments with a reach for energies beyond 1019 eV. We have demonstrated that air shower radio signals carry information on both the energy and the mass of the primary particle, and current experiments are in the process of quantifying the precision with which this information can be accessed. All of this rests on solid understanding of the radio emission processes, which can be interpreted as a coherent superposition of geomagnetic emission, Askaryan charge-excess radiation, and Cherenkov-like coherence effects arising in the density gradient of the atmosphere. In this article, I highlight the “state of the art” of radio detection of cosmic rays and briefly discuss its perspectives for the next few years
Disciplinas: Física y astronomía
Palabras clave: Astronomía,
Física de partículas y campos cuánticos,
Rayos cósmicos,
Radio detección
Keyword: Physics and astronomy,
Astronomy,
Particle physics and quantum fields,
Cosmic rays,
Radio detection
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