On the coherent emission of radio frequency radiation from high energy particle showers
Enrico Conti,Giorgio Sartori +1 more
TLDR
In this article, the authors discuss the conditions for coherence, which in literature have been too often taken for granted, and calculate them analytically, finding a formulation which comprehends both the coherent and the incoherent emissions.Abstract:
Extended Air Showers produced by cosmic rays impinging on the earth atmosphere irradiate radio frequency radiation through different mechanisms. Upon certain conditions, the emission has a coherent nature, with the consequence that the emitted power is not proportional to the energy of the primary cosmic rays, but to the energy squared. The effect was predicted in 1962 by Askaryan and it is nowadays experimentally well established and exploited for the detection of ultra high energy cosmic rays. In this paper, we discuss in detail the conditions for coherence, which in literature have been too often taken for granted, and calculate them analytically, finding a formulation which comprehends both the coherent and the incoherent emissions. We apply the result to the Cherenkov effect, obtaining the same conclusions derived by Askaryan, and to the geosynchrotron radiation.read more
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The classical theory of fields
TL;DR: The principle of relativity Relativistic mechanics Electromagnetic fields electromagnetic waves as discussed by the authors The propagation of light The field of moving charges Radiation of electromagnetic waves Particle in a gravitational field The gravitational field equation
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Cosmic Ray Showers
TL;DR: A survey of literature pertaining to investigations of cosmic showers can be found in this paper, where the authors discuss the significance of extensive air showers, methods for the observatioh, identification, and energy measurement of particle components in showers, and problems confronting research on extensive air shower and areas in which progress is forthcoming.
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The Lateral and the Angular Structure Functions of Electron Showers
Koichi Kamata,Jun Nishimura +1 more
TL;DR: In this article, the lateral and angular distribution functions of electron showers are derived analytically with and without the Landau approximation including ionization loss, and their results are applied to the analysis of high energy cosmic ray phenomena.
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Observation of the Askaryan effect: coherent microwave Cherenkov emission from charge asymmetry in high-energy particle cascades.
David Saltzberg,P. W. Gorham,Dieter Walz,C. Field,R. Iverson,A.C. Odian,G. M. Resch,Paul Schoessow,Dawn Williams +8 more
TL;DR: The first direct experimental evidence for the charge excess in high-energy particle showers and corresponding radio emission predicted nearly 40 years ago by Askaryan is presented, providing strong support for experiments designed to detect high- energy cosmic rays such as neutrinos via coherent radio emission from their cascades.