Universal Torsion Induced Interaction from Large Extra Dimensions
高能物理 - 唯象学
2009-10-31 v1
摘要
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.
引用
@article{arxiv.hep-ph/0012186,
title = {Universal Torsion Induced Interaction from Large Extra Dimensions},
author = {Tatsu Takeuchi and Lay Nam Chang and Oleg Lebedev and Will Loinaz},
journal= {arXiv preprint arXiv:hep-ph/0012186},
year = {2009}
}
备注
4 pages LaTeX, style files included. Talk presented by Takeuchi at LCWS2000