Search for large extra dimensions in the monojet+E(T) channel with the DØ detector

Phys Rev Lett. 2003 Jun 27;90(25 Pt 1):251802. doi: 10.1103/PhysRevLett.90.251802. Epub 2003 Jun 24.

Abstract

We present a search for large extra dimensions (ED) in pp 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.