Deviations from the $1/r^2$ Newton law due to extra dimensions

Details Deviations from the $1/r^2$ Newton law due to extra dimensions Deviations from the $1/r^2$ Newton law due to extra dimensions

1999-05-20

arxiv.org/abs/hep-ph/9905417v3

Phys.Lett. B472 (2000) 39-44

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, latex, 1 figure; v2: References added and some clarifications in sec. 3 are made; v3: Physics Letters B version

Scientific paper

10.1016/S0370-2693(99)01421-5

We systematically examine corrections to the gravitational inverse square law, which are due to compactified extra dimensions. We find the induced Yukawa-type potentials for which we calculate the strength \alpha and range. In general the range of the Yukawa correction is given by the wavelength of the lightest Kaluza-Klein state and its strength, relative to the standard gravitational potential, by the corresponding degeneracy. In particular, when n extra dimensions are compactified on an n-torus, we find that the strength of the potential is \alpha=2n, whereas the compactification on an n-sphere gives \alpha= n+1. For Calabi-Yau compactifications the strength can be at most \alpha=20.

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