A Lower Bound on Neutrino Mass

Details A Lower Bound on Neutrino Mass A Lower Bound on Neutrino Mass

1996-06-05

arxiv.org/abs/hep-ph/9606250v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages; Moriond Proceedings

Scientific paper

The exchange of massless neutrinos between heavy fermions (e.g. $e,p,n$) gives rise to a long-range 2-body force. It is shown that the analogous many-body force can lead to an unphysically large energy density in white dwarfs and neutron stars. To reduce the energy density to a physically acceptable value, the neutrino must have a {\it minimum mass}, which is approximately $0.4\;eV/c^2$. Some recent questions relating to the derivation of this bound are also discussed.

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