Model-Independent Jets plus Missing Energy Searches

Abstract

We present a proposal for performing model-independent jets plus missing energy searches. Currently, these searches are optimized for mSUGRA and are consequently not sensitive to all kinematically-accessible regions of parameter space. We show that the reach of these searches can be broadened by setting limits on the differential cross section as a function of the total visible energy and the missing energy. These measurements only require knowledge of the relevant Standard Model backgrounds and can be subsequently used to limit any theoretical model of new physics. We apply this approach to an example where gluinos are pair-produced and decay to the LSP through a single-step cascade, and show how sensitivity to different gluino masses is altered by the presence of the decay chain. The analysis is closely based upon the current searches done at the Tevatron and our proposal requires only small modifications to the existing techniques. We find that within the MSSM, the gluino can be as light as 125 GeV. The same techniques are applicable to jets and missing energy searches at the Large Hadron Collider.

22 pages, 6 figures, 3 tables, typos corrected

References in corpus (5)

• Comparative study of various algorithms for the merging of parton showers and matrix elements in hadronic collisions
• Searching for Directly Decaying Gluinos at the Tevatron
• Search for squarks and gluinos in events with jets and missing transverse energy using 2.1 fb-1 of ppbar collision data at sqrt(s)=1.96 TeV
• Search for Large Extra Dimensions via Single Photon plus Missing Energy Final States at sqrt(s) = 1.96 TeV
• Constraining Light Colored Particles with Event Shapes

Cited by in corpus (5)

• QCD radiation in the production of heavy colored particles at the LHC
• \sqrt{s}_min: a global inclusive variable for determining the mass scale of new physics in events with missing energy at hadron colliders
• Surveying the Phenomenology of General Gauge Mediation
• Mass determination in sequential particle decay chains
• Effects of QCD radiation on inclusive variables for determining the scale of new physics at hadron colliders