منابع مشابه
Some aspects of multiparticle production in high energy nuclear interactions
We report some results on mean normalized multiplicity (RA). This quantity shows independence with energy for pion-nucleus and proton-nucleus interactions both. The variation of RA4 with mean number of collisions made by incident hdaron inside the nucleus has also been studied.
متن کاملUltra- and Extremely High Energy Neutrino Astronomy
Scientific motivations for ultraand extremely high energy neutrino astronomy are considered. Sources and expected fluxes of EHE/UHE neutrinos are briefly discussed. Operating and planned experiments on astrophysical neutrino detection are reviewed focusing on deep underwater/ice Cherenkov neutrino telescopes.
متن کاملThe Extremely High Energy Cosmic Rays
Experimental results from Haverah Park, Yakutsk, AGASA and Fly’s Eye are reviewed. All these experiments work in the energy range above 10 eV. The ’dip’ structure around 10 eV in the energy spectrum is well established by all the experiments, though the exact position differs slightly. Fly’s Eye and Yakutsk results on the chemical composition indicate that the cosmic rays are getting lighter ov...
متن کاملPhysics of Extremely High Energy Cosmic Rays
Over the last third of the century, a few tens of events, detected by ground-based cosmic ray detectors, have opened a new window in the field of high-energy astrophysics. These events have macroscopic energies exceeding 5 × 10 eV -, unobserved sources if supposed to be in our vicinity -, an unknown chemical composition and a production and transport mechanism yet to be explained. With a flux a...
متن کاملExtremely High Energy Neutrinos and Their Detection
We discuss in some detail the production of extremely high energy (EHE) neutrinos with energies above 1018 eV. The most certain process for producing such neutrinos results from photopion production by EHE cosmic rays in the cosmic background photon Ðeld. However, using assumptions for the EHE cosmic-ray source evolution that are consistent with results from the deep QSO survey in the radio and...
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ژورنال
عنوان ژورنال: Physical Review
سال: 1952
ISSN: 0031-899X
DOI: 10.1103/physrev.85.932