Universal Torsion Induced Interaction from Large Extra Dimensions

Details Universal Torsion Induced Interaction from Large Extra Dimensions Universal Torsion Induced Interaction from Large Extra Dimensions

2000-12-15

arxiv.org/abs/hep-ph/0012186v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages LaTeX, style files included. Talk presented by Takeuchi at LCWS2000

Scientific paper

10.1063/1.1394388

We consider a model with extra compact dimensions in which only gravity exists in the 4+n dimensional bulk. If the gravitational connection is not assumed to be symmetric, that is, unless torsion is artificially set to zero, then a universal contact interaction among the fermions on the 4-dimensional wall is induced. Using a global fit to Z-pole observables, we find the 3 sigma bound on the scale of quantum gravity to be M_S = 28 TeV for n=2. If Dirac or light sterile neutrinos are present, the data from SN1987A increase the bound to \sqrt{n} M_S >= 210 TeV.

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