Search for squarks and gluinos in events with jets and missing transverse energy in ppbar collisions at sqrt(s)=1.96 TeV

TL;DR

This paper reports a search for squarks and gluinos in proton-antiproton collisions at 1.96 TeV, using the D0 detector, finding no evidence but setting new mass limits within a supersymmetry framework.

Contribution

First search for squarks and gluinos at this energy with D0, establishing new lower mass limits in the minimal supergravity model.

Findings

No evidence for squark or gluino production.

Lower mass limits of 325 GeV for squarks and 241 GeV for gluinos.

Results constrain supersymmetry parameter space.

Abstract

The results of a search for squarks and gluinos using data from ppbar collisions recorded at a center-of-mass energy of 1.96 TeV by the D0 detector at the Fermilab Tevatron Collider are reported. The topologies analyzed consist of acoplanar-jet and multijet events with large missing transverse energy. No evidence for the production of squarks or gluinos was found in a data sample of 310 pb-1. Lower limits of 325 and 241 GeV were derived at the 95% C.L. on the squark and gluino masses, respectively, within the framework of minimal supergravity with tan(beta)=3, A0=0, and mu<0.