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Is there a 4.5 PeV neutron line in the cosmic ray spectrum?

R. Ehrlich
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Abstract

Recently we presented a model to fit the cosmic ray spectrum using the hypothesis that the electron neutrino is a tachyon. The model predicted the existence of a neutron flux in the cosmic rays in a narrow region centered on E = 4.5 +/- 2.2 PeV. The published literature on Cygnus X-3 reveals just such a $6σ$ spike of neutral particles centered on E = 4.5 PeV. A second prediction of the model concerning integrated neutron fluxes at several energies also is consistent with published data. A specific further test of the model is proposed.

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R. Ehrlich. 1999-09-05. Is there a 4.5 PeV neutron line in the cosmic ray spectrum?. https://doi.org/10.1103/physrevd.60.073005

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