Search strategy for exclusive multi-jet events from supersymmetry at CMS

A search strategy for a missing energy signature, predicted by supersymmetry with R-parity conservation, is presented using event topologies with exactly $n$ ($n = 2 \dots 6$) hadronic jets. The search makes use of a kinematic variable, $\alpha_{\text{T}}$ to discriminate against the dominant background from QCD events. The main emphasis of the approach is on developing a robust analysis technique suited to the early collision data at the LHC. The event yields expected from Standard-Model backgrounds and from signal, for a few selected sets of SUSY parameters, are reported for an integrated luminosity of 100~pb$^{-1}$ and a centre-of-mass energy of 10~TeV. In addition, data-driven methods to estimate the remaining Standard-Model backgrounds are presented.