Search for Large Extra Dimensions via Single Photon plus Missing Energy Final States at sqrt(s) = 1.96 TeV

TL;DR

This paper reports a search for large extra dimensions using proton-antiproton collisions, focusing on events with a single photon and missing energy, setting limits on the fundamental mass scale for various numbers of extra dimensions.

Contribution

It presents the first limits on large extra dimensions at Tevatron energies using the photon plus missing energy signature.

Findings

Excluded fundamental mass scale M_D from 884 GeV to 778 GeV

Analyzed approximately 1 fb^{-1} of data at 1.96 TeV

Set 95% confidence level limits on extra dimensions

Abstract

We report on a search for large extra dimensions in a data sample of approximately 1 fb^{-1} of ppbar collisions at sqrt(s) = 1.96 TeV. We investigate Kaluza-Klein graviton production with a photon and missing transverse energy in the final state. At the 95% C.L. we set limits on the fundamental mass scale M_{D} from 884 GeV to 778 GeV for two to eight extra dimensions.