Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2001-09-20
Astrophys.J.Suppl.141:195-209,2002; Astrophys.J.Suppl.141:195-210,2002
Physics
High Energy Physics
High Energy Physics - Phenomenology
Section added +modifications
Scientific paper
10.1086/340281
Spectacular processes in astrophysical sites produce high-energy cosmic rays which are further accelerated by Fermi-shocks into a power-law spectrum. These, in passing through radiation fields and matter, produce neutrinos. Neutrino telescopes are designed with large detection volumes to observe such astrophysical sources. A large volume is necessary because the fluxes and cross-sections are small. We estimate various telescopes' sensitivities and expected event rates from astrophysical sources of high-energy neutrinos. We find that an ideal detector of km^2 incident area can be sensitive to a flux of neutrinos integrated over energy from 10^5 and 10^{7} GeV as low as 1.3 * 10^(-8) * E^(-2) (GeV/cm^2 s sr) which is three times smaller than the Waxman-Bachall conservative upper limit on potential neutrino flux. A real detector will have degraded performance. Detection from known point sources is possible but unlikely unless there is prior knowledge of the source location and neutrino arrival time.
Albuquerque Ivone F. M.
Lamoureux Jodi
Smoot George F.
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