AMANDA Observations Constrain the Ultrahigh Energy Neutrino Flux
A number of experimental techniques are currently being deployed in an effort to make the first detection of ultra-high energy cosmic neutrinos. To accomplish this goal, techniques using radio and acoustic detectors are being developed, which are optimally designed for studying neutrinos with energies in the PeV-EeV range and above. Data from the AMANDA experiment, in contrast, has been used to place limits on the cosmic neutrino flux at less extreme energies (up to {approx}10 PeV). In this letter, we show that by adopting a different analysis strategy, optimized for much higher energy neutrinos, the same AMANDA data can be used to place a limit competitive with radio techniques at EeV energies. We also discuss the sensitivity of the IceCube experiment, in various stages of deployment, to ultra-high energy neutrinos.
- Research Organization:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC02-76CH03000
- OSTI ID:
- 892504
- Report Number(s):
- FERMILAB-PUB-06-097-A; arXiv eprint number astro-ph/0605103; TRN: US0701483
- Journal Information:
- Phys.Rev.Lett.97:099901,2006, Journal Name: Phys.Rev.Lett.97:099901,2006
- Country of Publication:
- United States
- Language:
- English
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