Search for squarks and gluinos in events containing jets and a large imbalance in transverse energy

Abstract

Using data corresponding to an integrated luminosity of 79 pb^-1, DØ has searched for events containing multiple jets and large missing transverse energy in pp̅ collisions at √s=1.8 TeV at the Fermilab Tevatron collider. Observing no significant excess beyond what is expected from the standard model, we set limits on the masses of squarks and gluinos and on the model parameters m₀ and m_½, in the framework of the minimal low-energy supergravity models of supersymmetry. For tanβ=2 and A₀=0, with μ<0, we exclude all models with m_q^~<250 GeV/c². For models with equal squark and gluino masses, we exclude m<260 GeV/c².