Phenomenology of antigravity in N=2,8 supergravity

Details Phenomenology of antigravity in N=2,8 supergravity Phenomenology of antigravity in N=2,8 supergravity

1997-10-31

arxiv.org/abs/hep-ph/9710562v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, LaTeX, PACS: 04.65.+e, to appear in Proc. Int. Europhysics Conference on H.E.P. 1997, Jerusalem

Scientific paper

$N=2,8$ supergravity predicts antigravity (gravivector and graviscalar) fields in the graviton supermultiplet. Data on the binary pulsar PSR 1913+16, tests of the equivalence principle and searches for a fifth force yield an upper bound of order 1 meter (respectively, 100 meters) on the range of the gravivector (respectively, graviscalar) interaction. Hence these fields are not important in non-relativistic astrophysics (for the weak-field limit of $N=2,8$ supergravity) but can play a role near black holes and for primordial structures in the early universe of a size comparable to their Compton wavelengths.

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