Performance of jet substructure techniques for large-R jets in proton-proton collisions at √s = 7 TeV using the ATLAS detector
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Taylor_Performance of jet substructure.pdf
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Author(s)
Taylor, Frank E.
Aad, G.
Abajyan, T.
Abbott, B.
Abdallah, J.
Abdel Khalek, S.
Abdelalim, A. A.
Abdinov, O.
Aben, R.
Abi, B.
Date Issued
September 2013
Journal
Journal of High Energy Physics
Publisher
Springer-Verlag
Citation
Aad, G., T. Abajyan, B. Abbott, J. Abdallah, S. Abdel Khalek, A. A. Abdelalim, O. Abdinov, et al. “Performance of jet substructure techniques for large-R jets in proton-proton collisions at s√ = 7 TeV using the ATLAS detector.” Journal of High Energy Physics 2013, no. 9 (September 13, 2013). © CERN, for the benefit of the ATLAS collaboration
Version
Final published version
Abstract
This paper presents the application of a variety of techniques to study jet substructure. The performance of various modified jet algorithms, or jet grooming techniques, for several jet types and event topologies is investigated for jets with transverse momentum larger than 300 GeV. Properties of jets subjected to the mass-drop filtering, trimming, and pruning algorithms are found to have a reduced sensitivity to multiple proton-proton interactions, are more stable at high luminosity and improve the physics potential of searches for heavy boosted objects. Studies of the expected discrimination power of jet mass and jet substructure observables in searches for new physics are also presented. Event samples enriched in boosted W and Z bosons and top-quark pairs are used to study both the individual jet invariant mass scales and the efficacy of algorithms to tag boosted hadronic objects. The analyses presented use the full 2011 ATLAS dataset, corresponding to an integrated luminosity of 4.7 ± 0.1 fb[superscript −1] from proton-proton collisions produced by the Large Hadron Collider at a centre-of-mass energy of s√ = 7 TeV.
MIT Department
Massachusetts Institute of Technology. Department of Physics
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DOI of Published Version
https://doi.org/10.1007/jhep09(2013)076
