Searches for TeV-scale particles at the LHC using jet shapes

Abstract

New particles at the TeV scale can decay hadronically with strongly collimated jets, thus the standard reconstruction methods based on invariant-masses of well-separated jets can fail. We discuss how to identify such particles in pp collisions at the LHC using jet shapes which help to reduce the contribution of QCD-induced events. We focus on a rather generic example X to ttbar to hadrons, with X being a heavy particle, but the approach is well suited for reconstruction of other decay channels characterized by a cascade decay of known states.

14 pages, 6 figures

References in corpus (11)

• PYTHIA 6.4 Physics and Manual
• ROOT - A C++ Framework for Petabyte Data Storage, Statistical Analysis and Visualization
• Top-tagging: A Method for Identifying Boosted Hadronic Tops
• Techniques for improved heavy particle searches with jet substructure
• Strategies to Identify Boosted Tops
• The Bulk RS KK-gluon at the LHC
• Searching for the Kaluza-Klein Graviton in Bulk RS Models
• Top Jets at the LHC
• Discovering baryon-number violating neutralino decays at the LHC
• Reconstructing Sparticle Mass Spectra using Hadronic Decays
• Hunting for the Top Partner in the Littlest Higgs Model with T-parity at the LHC

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