New Analyses of Double-Bang Events in the Atmosphere

Details New Analyses of Double-Bang Events in the Atmosphere New Analyses of Double-Bang Events in the Atmosphere

2007-03-13

arxiv.org/abs/hep-ph/0703145v3

Braz. J. Phys. 38, 219-226 (2008)

Physics

High Energy Physics

High Energy Physics - Phenomenology

17 pages, 5 figures, final version to appear in BJP

Scientific paper

We use CORSIKA+Herwig simulation code to produce ultra-high energy neutrino interactions in the atmosphere. Our aim is to reproduce extensive air showers originated by extragalactic tau-neutrinos. For charged current tau-neutrino interactions in the atmosphere, beside the air shower originated from the neutrino interaction, it is expected that a tau is created and may decay before reaching the ground. That phenomenon makes possible the generation of two related extensive air showers, the so called Double-Bang event. We make an analysis of the main characteristics of Double-Bang events in the atmosphere for mean values of the parameters involved in such phenomenon, like the inelasticity and tau decay length. We discuss what may happen for the ``out of the average'' cases and conclude that it may be possible to observe this kind of event in ultra-high energy cosmic ray observatories such as Pierre Auger or Telescope Array.

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