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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Title: Pure Samples of Quark and Gluon Jets at the LHC
Author: Gallicchio, Jason; Schwartz, Matthew D

Note: Order does not necessarily reflect citation order of authors.

Citation: Gallicchio, Jason, and Matthew Schwartz. 2011. Pure Samples of Quark and Gluon Jets at the LHC. Journal of High Energy Physics 2011(10): 103.
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Abstract: 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 7TeV LHC, the \(pp \to \gamma +2\)jets sample can provide 98% pure quarkjets with 200 GeV of transverse momentum and a cross section of 5 pb. Toget 10 pb of 200 GeV jets with 90% gluon purity, the \(pp \to 3\) jets sample can be used. \(b+2\)jets is also useful for gluons, but only if the b-tagging is very efficient.
Published Version: doi:10.1007/JHEP10(2011)103
Other Sources: http://arxiv.org/abs/1104.1175
Terms of Use: This article is made available under the terms and conditions applicable to Open Access Policy Articles, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#OAP
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:8166412

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  • FAS Scholarly Articles [7103]
    Peer reviewed scholarly articles from the Faculty of Arts and Sciences of Harvard University
 
 

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