Signals of new physics in high-energy cosmic-ray interactions

Details Signals of new physics in high-energy cosmic-ray interactions Signals of new physics in high-energy cosmic-ray interactions

Aug 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989phrvl..63..844d&link_type=abstract

Physical Review Letters (ISSN 0031-9007), vol. 63, Aug. 21, 1989, p. 844-847.

Astronomy and Astrophysics

Astrophysics

11

Astronomical Models, Cosmic Rays, High Energy Interactions, Nuclear Astrophysics, Neutrinos, Point Sources, Quantum Chromodynamics, Radiation Absorption, Relic Radiation, X Ray Binaries

Scientific paper

In some composite models of quarks and leptons, leptons are expected to develop strong interactions at high energies. This hypothesis can be tested by studying the absorption of high-energy particles emitted by point sources in the sky on the cosmic microwave background. Data on Cygnus X-3 exhibit an anomaly in the absorption. A plausible interpretation of the anomaly is that some of the interactions are caused by neutrinos. It is inferred that the cross section of neutrino-nucleon interactions is approximately 6 mb at energies of a few PeV, significantly exceeding the prediction of the standard model.

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