Observability of Earth-Skimming Ultrahigh Energy Neutrinos

Jonathan L. Feng, Peter Fisher, Frank Wilczek, Terri M. Yu

Research output: Contribution to journalArticlepeer-review

17 Scopus citations


Neutrinos with energies above [Formula presented] are expected from cosmic ray interactions with the microwave background and are predicted in many speculative models. Such energetic neutrinos are difficult to detect, as they are shadowed by Earth, but rarely interact in the atmosphere. Here we propose a novel detection strategy: Earth-skimming neutrinos convert to charged leptons that escape Earth, and these leptons are detected in ground level fluorescence detectors. With the existing HiRes detector, neutrinos from some proposed sources are marginally detectable, and improvements of 2 orders of magnitude are possible at the proposed Telescope Array.

Original languageEnglish (US)
Pages (from-to)4
Number of pages1
JournalPhysical Review Letters
Issue number16
StatePublished - 2002
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)


Dive into the research topics of 'Observability of Earth-Skimming Ultrahigh Energy Neutrinos'. Together they form a unique fingerprint.

Cite this