The Role of tau-neutrino ultrahigh-energy astrophysics in km**3 detectors
- Daniele Fargion()
- Rome U. and
- INFN, Rome and
- Technion
14 pages
e-Print:
- astro-ph/9704205 [astro-ph]
Report number:
- INFN-1166-97,
- ROMAI-17-2-97,
- EE-PUP-1074
View in:
Citations per year
Abstract: (arXiv)
We show that the expected signals, by their secondary tau tracks, in Km^3 detectors at highest cosmic ray energy window , must overcome the corresponding (or muonic) ones. Indeed, the Lorentz-boosted tau range length grows (linearly) above muon range, for E_{\tau} \RAISE 1.6 x 10^8 GeV and reaches its maxima extension, , at energy . At this peak the tau range is nearly 20 times the corresponding muon range (at the same energy) implying a similar ratio in over detectability. This dominance, however may lead (at present most abundant model fluxes) to just a rare spectacular event a year (if flavor mixing occurs). Lower energetic and signals at energy range () may be more easily observed in km^3 detectors at a rate of a few to tens event anything) a year.- neutrino/tau: search for
- neutrino/tau: particle source
- astrophysics
- neutrino nucleon: interaction
- tau: neutrinoproduction
- tau: path length
- muon: path length
- energy dependence
- antineutrino electron: interaction
- antineutrino/e
References(11)
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