Quark lepton unification in higher dimensions

Abstract

The idea of unifying quarks and leptons in a gauge symmetry is very appealing. However, such an unification gives rise to leptoquark type gauge bosons for which current collider limits push their masses well beyond the TeV scale. We present a model in the framework of extra dimensions which breaks such quark-lepton unification symmetry via compactification at the TeV scale. These color triplet leptoquark gauge bosons, as well as the new quarks present in the model, can be produced at the LHC with distinctive final state signatures. These final state signals include high p_T multi-jets and multi-leptons with missing energy, monojets with missing energy, as well as the heavy charged particles passing through the detectors, which we also discuss briefly. The model also has a neutral Standard Model singlet heavy lepton which is stable, and can be a possible candidate for the dark matter.

28 pages, 5 eps figures

References in corpus (9)

• Stable Massive Particles at Colliders
• Dijet Searches for Supersymmetry at the LHC
• Search for Heavy Stable Charged Particles in pp collisions at sqrt(s)=7 TeV
• Where the Sidewalk Ends: Jets and Missing Energy Search Strategies for the 7 TeV LHC
• Interactions of Coloured Heavy Stable Particles in Matter
• Search for the minimal universal extra dimension model at the LHC with $\sqrt{s}$=7 TeV
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Cited by in corpus (5)

• LHC Signatures of Warped-space Vectorlike Quarks
• Probing Light Nonthermal Dark Matter at the LHC
• Dark Matter and Collider Searches in $S_3$-Symmetric 2HDM with Vector Like Leptons
• NLO QCD corrections to the resonant Vector Diquark production at the LHC
• Signals for vector-like leptons in an $S_3$-symmetric 2HDM at ILC