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Article: Reports outline astrophysics study results from University of Granada.
- Article from:
- Physics Week
- Article date:
- November 10, 2009
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According to recent research published in the Journal of Cosmology and Astroparticle Physics, "In order to estimate the possibility to observe exotic physics in a neutrino telescope, it is essential to first understand the flux of atmospheric neutrinos, muons and dimuons. We study the production of these leptons by high-energy cosmic rays."
"We identify three main sources of muons of energy E>= 10(6) GeV: the weak decay of charm and bottom mesons and the electromagnetic decay of unflavored mesons. Contrary to the standard assumption, we find that eta mesons, not the prompt decay of charm hadrons, are the dominant source of atmospheric muons at these energies. We ...