Abstract
Weak-scale supersymmetry is one of the best motivated and studied extensions of the Standard Model. The recent increase in the centre-of-mass energy of proton–proton collisions at the Large Hadron Collider gives a unique opportunity to extend the sensitivity to production of supersymmetric particles. We present several ATLAS results on searches for supersymmetric squarks and gluinos, including third generation squarks produced directly or via the decay of gluinos. The searches involve final states containing jets (possibly identified as coming from b-quarks), missing transverse momentum and no leptons. They are performed on 3.2fb−1 proton–proton data collected in 2015 at √ s = 13TeV. The limits obtained in these searches extend the ones obtained during Run-1 of the LHC significantly.
Highlights
Supersymmetry (SUSY) [1, 2, 3] is a popular extension to the Standard Model
Through the addition of supersymmetric partner fields to those of the Standard Model, SUSY could provide the solution to the hierarchy problem as well as offer a candidate dark matter particle
It is the target of a broad programme of searches at the Large Hadron Collider (LHC)
Summary
Through the addition of supersymmetric partner fields to those of the Standard Model, SUSY could provide the solution to the hierarchy problem as well as offer a candidate dark matter particle. For these reasons, it is the target of a broad programme of searches at the Large Hadron Collider (LHC). With the increased production cross-section at s = 13 TeV, early Run-2 searches have focused on pair production of gluinos, squarks, stops and sbottoms. All these searches followed a simple analysis strategy, at times in contrast with the corresponding Run-1 analysis. Any reducible backgrounds in each analysis are estimated using data-driven methods
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