Neutrino mass2 inferred from the cosmic ray spectrum and tritium beta decay

An earlier prediction of a cosmic ray neutron line right at the energy of the knee of the cosmic ray spectrum was based on the speculation that the electron neutrino is a tachyon whose mass is reciprocally related to the energy of the knee, Ek. Given the large uncertainty in Ek, the values of mν2 corresponding to it are consistent with values recently reported in tritium beta decay experiments.