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Pure Samples of Quark and Gluon Jets at the LHC
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Pure Samples of Quark and Gluon Jets at the LHC
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Having pure samples of quark and gluon jets would greatly facilitate the study of jet properties and substructure, with many potential standard model and new physics applications. To this end, we consider multijet and jets+X samples, to determine the purity that can be achieved by simple kinematic cuts leaving reasonable production cross sections. We find, for example, that at the 7 TeV LHC, the pp {\to} {\gamma}+2jets sample can provide 98% pure quark jets with 200 GeV of transverse momentum and a cross section of 5 pb. To get 10 pb of 200 GeV jets with 90% gluon purity, the pp {\to} 3jets sample can be used. b+2jets is also useful for gluons, but only if the b-tagging is very efficient.
Forward citations
Cited by 1 Pith paper
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Simplex Demixing: Disentangling Multiple Light-Flavor Jets at Colliders
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