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Ultra high energy cosmic ray neutrinos
Physics Letters B, 1983 Abstract Neutrinos, produced by the collisions of ultra high energy cosmic rays and the 3 K background radiation, require careful treatment of the evolving cosmic ray spectrum. The resulting neutrino differential energy spectrum is flat up to energies of order 10 19 eV, thus most events are expected at this energy.
Christopher T. HILL, David N. SCHRAMM
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ULTRA–HIGH-ENERGY COSMIC RAYS [PDF]
Lepton and Photon Interactions at High Energies, 2006 One of the most striking astrophysical phenomena today is the existence of cosmic ray particles with energies in excess of 1020 eV. While their presence has been confirmed by a number of experiments, it is not clear where and how these particles are accelerated to these energies and how they travel astronomical distances without substantial energy ...
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The Mystery of Ultra-High Energy Cosmic Rays [PDF]
AIP Conference Proceedings, 2000 LaTeX, 9 pages, Proceedings of the International Summer School on Experimental Physics of Gravitational Waves, Urbino, Italy, September ...
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Constraints on direct acceleration of UHECRs in astrophysical sources
EPJ Web of Conferences, 2013 A toy model of the population of numerous non-identical extragalactic sources of ultra-high-energy cosmic rays is presented. In the model, the acceleration of cosmic-ray particles is direct (not diffusive) and takes place in magnetospheres of ...
Ptitsyna Ksenia +2 more
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The future of ultra high energy cosmic rays [PDF]
Nuclear Physics B - Proceedings Supplements, 2002 Contrary to earlier expectations, several cosmic ray events with energies above $10^{20}$ eV have been reported by a number of ultra-high energy cosmic ray observatories. According to the AGASA experiment, the flux of such events is well above the predicted Greisen-Zatsepin-Kuzmin cutoff due to the pion production of extragalactic cosmic ray protons ...
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The Astrophysical Journal, 2023 The origin and mass composition of ultrahigh-energy cosmic rays is one of the big open questions of modern physics. Estimating the mass of ultrahigh-energy cosmic rays always involves the comparison of data with simulations using hadronic interaction ...
Maximilian Stadelmaier
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Semi-Contained Interactions of Atmospheric Neutrinos in the MACRO Detector [PDF]
, 2002 Atmospheric neutrinos arise from the decay of particles (primarily pions, muons and kaons) produced in the collision of high energy cosmic ray particles with the atmosphere.
Nolty, R, Nolty, Robert G.
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Applied Sciences, 2021 The Cosmic-Ray Extremely Distributed Observatory (CREDO) was established to detect and study ultra high-energy cosmic ray particles. In addition to making use of traditional methods for finding rare and extended cosmic ray events such as professional ...
Michał Karbowiak +8 more
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Has telescope array discovered electroweak monopole?
Physics Letters BWe propose the ultra high energy cosmic ray recently detected by Telescope Array to be the electroweak monopole, and present theoretical arguments which support this.
Y.M. Cho, Franklin H. Cho
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Highlights from the Telescope Array
EPJ Web of Conferences, 2016 The Telescope Array measures the properties of ultra high energy cosmic ray induced extensive air showers. We do this using a variety of techniques including an array of scintillator detectors to sample the footprint of the air shower when it reaches the
Matthews J.N.
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