Neutrino Fluctuat Nec Mergitur: Are Fossil Neutrinos Detectable?

  • A. De Rújula
Part of the Lie Groups: History, Frontiers and Applications book series (LGR, volume 11)


This is a brief report on work with S.L. Glashow.1 The question is whether light (few eV to ~100 eV) neutrinos, left over from the big bang, are detectable. The answer is, perhaps. If the weak currents of leptons, like those of quarks, are not diagonal in mass eigenstates, a neutrino will decay into a lighter neutrino and a monochromatic photon. The corresponding photon line may be detectable provided: 1) Neutrinos are heavy enough to participate in galaxy clustering, 2) Neutrino lifetimes are, as in some weak interaction models, short enough.


Neutrino Mass Radiative Decay Galaxy Cluster Galactic Center Light Neutrino 


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Copyright information

© Robert Hermann 1980

Authors and Affiliations

  • A. De Rújula
    • 1
    • 2
  1. 1.Center for Theoretical Physics, Laboratory for Nuclear Science and Department of PhysicsMassachusetts Institute of TechnologyCambridgeUSA
  2. 2.CERNGenevaSwitzerland

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