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The Imaging Atmospheric Cherenkov technique allows to detect very high energy gamma rays from few tens of GeV to hundreds of TeV using ground-based instrumentation. At these energies a gamma ray generates a shower of secondary particles…

Instrumentation and Methods for Astrophysics · Physics 2023-06-13 Juan Cortina , Carlos Delgado

Atmospheric Cerenkov telescopes are used to detect electromagnetic showers from primary gamma rays of energy ~300 GeV - ~10 TeV and to discriminate these from cascades due to hadrons using the Cerenkov images. The geomagnetic field affects…

Atmospheric scattering of light emitted by an air shower not only attenuates direct fluorescence light from the shower, but also contributes to the observed shower light. So far only direct and singly-scattered Cherenkov photons have been…

High Energy Astrophysical Phenomena · Physics 2009-06-25 J. Pekala , P. Homola , B. Wilczynska , H. Wilczynski

Measurements of the lateral distribution of Cherenkov photons with the wide-angle atmospheric Cherenkov light detector array AIROBICC and of the charged particle lateral distribution with the scintillator matrix of the HEGRA air-shower…

Astrophysics · Physics 2011-05-23 F. Arqueros , The HEGRA Collaboration

We discuss the Cherenkov process $\nu\to\nu\gamma$ in the presence of a homogeneous magnetic field. The neutrinos are taken to be massless with only standard-model couplings. The magnetic field fulfills the dual purpose of inducing an…

High Energy Physics - Phenomenology · Physics 2007-05-23 A. Ioannisian , G. Raffelt

In \u{C}erenkov radiation and transition radiation, evanescent wave from motion of charged particles transfers into radiation coherently. However, such dissipative motion-induced radiations require particles to move faster than light in…

Plasma Physics · Physics 2013-10-30 Yangjie Liu , L. K. Ang

We use numerical modeling to study the features of parametric (quasi-Cherenkov) cooperative radiation arising when an electron bunch passes through a crystal (natural or artificial) under the conditions of dynamical diffraction of…

Accelerator Physics · Physics 2013-04-04 S. V. Anishchenko , V. G. Baryshevsky

In this work we investigate and parameterize the amount and angular distribution of Cherenkov photons which are generated by electromagnetic cascades in water or ice. We simulate electromagnetic cascades with Geant4 for primary electrons,…

Instrumentation and Methods for Astrophysics · Physics 2013-03-21 Leif Rädel , Christopher Wiebusch

The reconstruction of cosmic-ray-induced extensive air showers with a non-imaging Cherenkov detector array requires knowledge of the Cherenkov yield of any given air shower for a given set of shower parameters. Although air showers develop…

High Energy Astrophysical Phenomena · Physics 2023-03-29 Isaac Buckland , Douglas Bergman

A charged particle moving through a medium emits Cherenkov radiation when its velocity exceeds the phase velocity of light in that medium. Under the influence of a strong electromagnetic field, quantum fluctuations can become polarized,…

High Energy Physics - Phenomenology · Physics 2019-04-30 Alexander J. Macleod , Adam Noble , Dino A. Jaroszynski

In vacuum with an induced by strong electromagnetic wave refraction index larger than unity, an ultra-relativistic electron emits Cherenkov radiation. During the interaction with this wave the electron also radiates photons via the Compton…

Plasma Physics · Physics 2019-07-31 Sergei V. Bulanov , Pavel V. Sasorov , Stepan S. Bulanov , Georg Korn

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…

Instrumentation and Methods for Astrophysics · Physics 2017-07-05 Enrico Conti , Giorgio Sartori

Full quantum calculation of Cherenkov gluon radiation by quark and gluon currents and a Cherenkov decay of a gluon into a pair of Cherenkov gluons in transparent media is performed. Energy losses due to Cherenkov gluon radiation in high…

Nuclear Theory · Physics 2013-04-09 Mikhail Alfimov , Andrei Leonidov

Cherenkov telescopes could have the capability of detecting high energy tau neutrinos by searching for very inclined showers. If a tau lepton, produced by a tau neutrino, escapes from the Earth crust, it will decay and initiate an air…

Instrumentation and Methods for Astrophysics · Physics 2013-08-02 Dariusz Gora , Elisa Bernardini

The general aim of this work is to obtain the lateral distribution of atmospheric Cherenkov light in extensive air showers produced by different primary particles precisely by. protons, Helium, Iron, Oxygen, Carbon, Nitrogen, Calcium,…

Astrophysics · Physics 2007-05-23 A. Mishev , J. Stamenov

It is shown that if weak interactions can generate masses and polarize matter, then the Cherenkov effect induced by these interactions appears. The resonance ($v_\nu < c/n$) and the Cherenkov ($v_\nu > c/n$) effects are competitive…

High Energy Physics - Phenomenology · Physics 2007-05-23 Kh. M. Beshtoev

Using air showers induced by TeV gamma-rays from Mrk 501, the radial distribution of Cherenkov light is investigated. The shower geometry is reconstructed from the stereoscopic shower images obtained with the telescopes of the HEGRA IACT…

Astrophysics · Physics 2011-05-23 HEGRA Collaboration , F. Aharonian et al

We highlight the capacity of current and forthcoming air shower arrays using water-Cherenkov stations to detect neutrino events spanning energies from $10\,$GeV to $100\,$TeV. This detection approach leverages individual stations equipped…

High Energy Astrophysical Phenomena · Physics 2025-09-25 J. Alvarez-Muñiz , R. Conceição , P. J. Costa , B. S. González , M. Pimenta , B. Tomé

We have investigated some features of the density and arrival time distributions of Cherenkov photons in extensive air showers using the CORSIKA simulation package. The main thrust of this study is to see the effect of hadronic interaction…

Instrumentation and Methods for Astrophysics · Physics 2015-02-23 P. Hazarika , U. D. Goswami , V. R. Chitnis , B. S. Acharya , G. S. Das , B. B. Singh , R. J. Britto

Until recently, the interaction of electromagnetic waves with crystals built from parallel metallic wires (wire media) was analyzed in the approximation of isotropic scattering of the electromagnetic wave by a single wire. However, if the…

Optics · Physics 2017-06-28 Vladimir Baryshevsky , Evgeny Gurnevich