Higher Representations and Multi-Jet Resonances at the LHC

Details Higher Representations and Multi-Jet Resonances at the LHC Higher Representations and Multi-Jet Resonances at the LHC

2011-08-16

arxiv.org/abs/1108.3333v2

Phys.Rev.D84:115005,2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, ReVTeX, 3 figures, 2 tables. Published version, references added

Scientific paper

10.1103/PhysRevD.84.115005

The CMS collaboration has recently conducted a search for trijet resonances in multi-jet events at the LHC. Motivated in part by this analysis, we examine the phenomenology of exotic particles transforming under higher representations of SU(3) color, focusing on those representations which intrinsically prohibit decays to fewer than three jets. We determine the LHC discovery reach for a particle transforming in a representation of this sort and discuss several additional theoretical and phenomenological constraints which apply to such a particle. Furthermore, we demonstrate that such a particle can provide a consistent explanation for a trijet excess (an invariant-mass peak of roughly 375 GeV) observed in the recent CMS study.

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