منابع مشابه
Ultrahigh Energy Neutrinos and the Highest Energy Cosmic Rays
It has been suggested that the characteristic energy of string models may be considerably lower than the observed Planck mass (≈ 10GeV). In such schemes, the unification of interactions takes place around the string scale, perhaps as low as a few tens of TeV. Consequently, at energies above the string scale, neutrinos acquire interactions comparable in strength to strong interactions. While the...
متن کامل30TH INTERNATIONAL COSMIC RAY CONFERENCE The Highest Energy Neutrinos
Measurements of the arrival directions of cosmic rays have not revealed their sources. High energy neutrino telescopes attempt to resolve the problem by detecting neutrinos whose directions are not scrambled by magnetic fields. The key issue is whether the neutrino flux produced in cosmic ray accelerators is detectable. It is believed that the answer is affirmative, both for the galactic and ex...
متن کاملStrongly Interacting Neutrinos and the Highest Energy Cosmic Rays
Cosmic rays of energies larger than the Greisen–Zatsepin–Kuzmin (GZK) cutoff may be neutrinos if they acquire strong interactions due to a “precocious unification” of forces. A scenario for this to happen is outlined. There is no contradiction with precision measurements carried out at LEP and SLAC. Observable consequences at LHC and future neutrino detectors are discussed. PACS 13.85.T, 13.15,...
متن کاملCan high energy neutrino annihilation on relic neutrinos generate the observed highest energy cosmic-rays?
Annihilation of high energy, ∼ 10eV, neutrinos on big bang relic neutrinos of ∼ 1eV mass, clustered in the Galactic halo or in a nearby galaxy cluster halo, has been suggested to generate, through hadronic Z decay, high energy nucleons and photons which may account for the detected flux of > 10eV cosmic-rays. We show that the flux of high energy nucleons and photons produced by this process is ...
متن کاملSuper-Kamiokande 0.07 eV Neutrinos in Cosmology: Hot Dark Matter and the Highest Energy Cosmic Rays
Relic neutrinos with mass in the range indicated by Super-Kamiokande results if neutrino masses are hierarchial (about 0.07 eV) are many times deemed too light to be cosmologically relevant. Here we remark that these neutrinos may significantly contribute to the dark matter of the Universe (with a large lepton asymmetry L) and that their existence might be revealed by the spectrum of ultra high...
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ژورنال
عنوان ژورنال: Journal of Physics: Conference Series
سال: 2008
ISSN: 1742-6596
DOI: 10.1088/1742-6596/120/6/062004