LHC phenomenology of general SU(2)xSU(2)xU(1) models

Abstract

General SU(2)xSU(2)xU(1) models represent a well-motivated intermediate step towards the unification of the Standard Model gauge groups. Based on a recent global analysis of low-energy and LEP constraints of these models, we perform numerical scans of their various signals at the LHC. We show that total cross sections for lepton and third-generation quark pairs, while experimentally easily accessible, provide individually only partial information about the model realized in Nature. In contrast, correlations of these cross sections in the neutral and charged current channels may well lead to a unique identification.

arXiv comment5 pages, 5 figures; v2 matches the published version; v3 added references

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• PYTHIA 6.4 Physics and Manual
• PYTHIA 6.2 Physics and Manual
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• Implications of gauge kinetic mixing on Z' and slepton production at the LHC
• Electroweak top-quark pair production at the LHC with $Z^{\prime }$ bosons to NLO QCD in POWHEG
• Updated constraints on $Z^{\prime }$ and $W^{\prime }$ bosons decaying into bosonic and leptonic final states using the Run 2 ATLAS data
• Can new heavy gauge bosons be observed in ultra-high energy cosmic neutrino events?
• Instanton-mediated baryon number violation in non-universal gauge extended models
• Improved bounds on W-W' mixing with ATLAS resonant WZ production data at the LHC at $\sqrt{s}=13$ TeV
• High-precision limits on $W$-$W^{\prime }$ and $Z$-$Z^{\prime }$ mixing from diboson production using the full LHC Run 2 ATLAS data set
• Direct search for heavy gauge bosons at the LHC in the nonuniversal SU(2) model
• Cross-fertilising extra gauge boson searches at the LHC
• NLO+NLL limits on $W^{\prime }$ and $Z^{\prime }$ gauge boson masses
• Leptonic number violation signature arising from a $Z^{\prime }$ model with non-diagonal leptonic couplings
• Baryon and lepton number violating effective operators in a non-universal extension of the Standard Model