How to improve top-quark tagging

In time for the first tests on LHC data we introduce a set of improvements and tests of purely kinematic top tagging algorithms. First, we show how different jet algorithms can be used for different transverse momentum regimes. Combining pruning and filtering in the reconstruction can enhance the si...

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Hauptverfasser: Plehn, Tilman (VerfasserIn) , Spannowsky, Michael (VerfasserIn) , Takeuchi, Michihisa (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 1 February 2012
In: Physical review. D, Particles, fields, gravitation, and cosmology
Year: 2012, Jahrgang: 85, Heft: 3, Pages: 034029
ISSN:1550-2368
DOI:10.1103/PhysRevD.85.034029
Online-Zugang:Verlag, Volltext: http://dx.doi.org/10.1103/PhysRevD.85.034029
Verlag, Volltext: https://link.aps.org/doi/10.1103/PhysRevD.85.034029
Volltext
Verfasserangaben:Tilman Plehn, Michael Spannowsky, Michihisa Takeuchi
Beschreibung
Zusammenfassung:In time for the first tests on LHC data we introduce a set of improvements and tests of purely kinematic top tagging algorithms. First, we show how different jet algorithms can be used for different transverse momentum regimes. Combining pruning and filtering in the reconstruction can enhance the signal over background ratio significantly, while larger jet radii only give minor improvements. Finally, bottom tagging can be added to the top tagger, but at least for the HEPTopTagger does not improve the kinematic selection algorithm.
Beschreibung:Gesehen am 24.05.2018
Beschreibung:Online Resource
ISSN:1550-2368
DOI:10.1103/PhysRevD.85.034029