Search for Large Extra Dimensions in the Monojet +E_T Channel with the DØ Detector

V. M. Abazov, Joint Institute for Nuclear Research, Dubna, Russia
Gregory Snow
D0 Collaboration

Document Type Article

Published by American Physical Society. Phys. Rev. Lett. VOLUME 90, NUMBER 25 (2003). http://prl.aps.org. Copyright © 2003 American Physical Society. Used by permission.

Abstract

We present a search for large extra dimensions (ED) in pp̅ collisions at a center-of-mass energy of 1.8 TeV using data collected by the DØ detector at the Fermilab Tevatron in 1994–1996. Data corresponding to 78.8 ± 3.9 pb^-1 are examined for events with large missing transverse energy, one high-p_T jet, and no isolated muons. There is no excess observed beyond expectation from the standard model, and we place lower limits on the fundamental Planck scale of 1.0 and 0.6 TeV for 2 and 7 ED, respectively.