Abstract
Conventional supersymmetry searches rely on large missing momentum and, on that account, are unsuitable for discovering superpartners nearly degenerate with the LSP. Such ``compressed regions'' are best probed by dedicated strategies that exploit their unique kinematic features. We consider a case study of a compressed gluino-bino simplified spectrum, motivated by its ability to set the dark matter relic abundance via coannihilation. A kinematic variable suited to this spectrum is introduced, by which, for a gluino-bino mass splitting of 100 GeV, the discovery reach is extendable to ${m}_{\stackrel{\texttildelow{}}{g}}=850\text{ }\text{ }\mathrm{GeV}$ (1370 GeV) at LHC center-of-mass energy 8 TeV (13 TeV) with luminosity $20\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ ($3000\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$). The nontrivial role played by soft triggers is also discussed.
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