Long Range Forces from Two Neutrino Exchange Revisited

Details Long Range Forces from Two Neutrino Exchange Revisited Long Range Forces from Two Neutrino Exchange Revisited

1992-11-24

arxiv.org/abs/hep-ph/9211301v1

Phys.Rev. D49 (1994) 4951-4953

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages + 1 figure (not included), UFIFT-HEP-92-28/HUTP-92-A041

Scientific paper

10.1103/PhysRevD.49.4951

The exchange of two massless neutrinos gives rise to a long range force which couples to weakly charged matter. As has been noted previously in the literature, the potential for this force is $\VN \propto G_{F}^2 / r^5$ with monopole-monople, spin-spin and more complicated interactions. Unfortunately, this is far too small to be observed in present day experiments. We calculate $\VN$ explicitly in the electroweak theory, and show that under very general assumptions forces arising from the exchange of two massless fermions can at best yield $1 / r^5$ potentials.

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