1307.3944 (Robert Ehrlich)
Robert Ehrlich
We here discuss some possible evidence for a peak at $4.5 PeV$ for cosmic rays having arrival directions within $3^0$ of candidate sources, which if correct would be the second time such a $4.5 PeV$ peak has been claimed having arrival directions within a few degrees of a possible source of cosmic rays. Moreover the existence of such a spectral peak (presumably associated with PeV neutral particles travelling in straight lines from their source) was predicted prior to its first being reported in 1999 on the assumption that the electron neutrino is a tachyon, and has a mass-squared $m^2\approx -0.25eV^2.$ An alternate explanation for the $4.5 PeV$ peak is considered and found to be unlikely.
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http://arxiv.org/abs/1307.3944
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