Search for "large" extra dimensions at the Tevatron
T. Ferbel

TL;DR
This paper reports on a search for large extra spatial dimensions at the Tevatron, aiming to detect deviations from standard physics that could indicate the presence of extra dimensions with a fundamental scale near 1 TeV.
Contribution
It presents the most restrictive lower limits on the effective Planck scale M_S, based on Tevatron data involving electron-positron and photon-photon production.
Findings
Lower limit on M_S of approximately 1 TeV established
No evidence found for large extra dimensions within the studied parameter space
Constraints improve previous bounds from other experiments
Abstract
We report on a search for extra spatial dimensions compactified at radii that are vast compared to those of the Planck length, and even larger than the distance corresponding to the scale of electroweak symmetry breaking. The study is based on the suggestion that there may be only a single mass scale appropriate to particle phenomena, this being the effective Planck scale M_S, which also serves as the scale for electroweak symmetry breaking. The only results that have been presented thus far from the Tevatron are based on data for e^+e^- and \gamma\gamma production at D\O, and provide the most restrictive lower limits to date on M_S of \approx 1 TeV.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Particle Accelerators and Free-Electron Lasers · International Science and Diplomacy
