Ultrahigh energy neutrino interactions

Details Ultrahigh energy neutrino interactions Ultrahigh energy neutrino interactions

Mar 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990nuphs..14..105d&link_type=abstract

Nuclear Physics B Proceedings Supplements, Volume 14, Issue 1, p. 105-113.

Physics

Nuclear Physics

2

Scientific paper

Ultrahigh energy neutrinos are valuable probes of physics beyond the Standard Model. Neutrinos of the highest energies are emitted by point sources in the sky. We review briefly the predictions of the Standard Model concerning neutrino interactions. We further argue that a number of preon models designed to overcome some difficulties of the Standard Model leads to a blurring of the distinction between leptons and quarks. As a consequence, at sufficiently high energies neutrinos acquire ``anomalous'' interactions. While this phenomenon can probably explain the observed muon excess in extensive air showers (EAS), it can be also tested by studying the absorption of the primaries on the cosmic microwave background. We discuss some observations to be performed in the search of such ``new physics'' beyond the Standard Model.

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