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

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

2010-02-21

arxiv.org/abs/1002.3982v4

Phys. Rev. D81 (2010) 114038

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages, 6 figures

Scientific paper

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.

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