Physics – Nuclear Physics
Scientific paper
Mar 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999nuphs..75..128s&link_type=abstract
Nuclear Physics B Proceedings Supplements, Volume 75, Issue 1-2, p. 128-137.
Physics
Nuclear Physics
Scientific paper
The observation in the Cosmic Radiation of particles with energy above 1020eV and the foreseeable existence of neutrinos of comparable energy open a chapter of fundamental interest in Astro-particle Physics concerning their origin and propagation in the intergalactic space. The extremely low flux involved (order of 1 particle/year 1000km2 sr) on one side and the very low interaction cross section of neutrinos on the other, require detectors of exceptional dimensions. An adequate solution can be represented by exploiting the UV fluorescence induced by the ionizing radiation in the Earth atmosphere which offers a target with up to millions of km2 sr and 1013 tons. The primary Cosmic Ray particles, neutrinos and gammas can be detected through the luminescence associated to the giant showers (EAS) they give rise to by the cascade of interactions produced in the atmosphere. The observation is carried out from Space with detectors on board of a LEO (Low Earth Orbit) satellite. The experimental framework is outlined and a description is given of the AIR-WATCH from SPACE mission and of the observational strategy.
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