Interpreting a 2 TeV resonance in WW scattering

Abstract

A diboson excess has been observed ---albeit with very limited statistical significance--- in $WW$, $WZ$ and $ZZ$ final states at the LHC experiments using the accumulated 8 TeV data. Assuming that these signals are due to resonances resulting from an extended symmetry breaking sector in the standard model and exact custodial symmetry we determine using unitarization methods the values of the relevant low-energy constants in the corresponding effective Lagrangian. Unitarity arguments also predict the widths of these resonances. We introduce unitarized form factors to allow for a proper treatment of the resonances in Monte Carlo generators and a more precise comparison with experiment.

17 pages, 7 figures. The new version contains an updated and revised list of references as well as a slightly extended conclusion section

References in corpus (29)

• Causality, Analyticity and an IR Obstruction to UV Completion
• Search for high-mass diboson resonances with boson-tagged jets in proton-proton collisions at $\sqrt{s}$ = 8 TeV with the ATLAS detector
• Search for massive resonances in dijet systems containing jets tagged as W or Z boson decays in pp collisions at sqrt(s) = 8 TeV
• Longitudinal WW scattering in light of the "Higgs" discovery
• Heavy Higgs bosons and the 2 TeV $W^{\prime }$ boson
• Interpretations of the ATLAS Diboson Resonances
• Interpretations of the ATLAS Diboson Anomaly
• G221 Interpretations of the Diboson and Wh Excesses
• 2 TeV Walking Technirho at LHC?
• Simple non-Abelian extensions of the standard model gauge group and the diboson excesses at the LHC
• A composite Heavy Vector Triplet in the ATLAS di-boson excess
• Sigma Decomposition
• Unitarity, analyticity, dispersion relations and resonances in strongly interacting $W_L{W}_L$, $Z_L{Z}_L$ and $hh$ scattering
• A scalar hint from the diboson excess?
• Diboson Signals via Fermi Scale Spin-One States
• Stringy origin of diboson and dijet excesses at the LHC
• Possible new resonance from $W_L{W}_L$-$hh$ interchannel coupling
• Anatomy of the ATLAS diboson anomaly
• Unitarity sum rules, three site moose model, and the ATLAS 2 TeV diboson anomalies
• 2 TeV Higgs boson and diboson excess at the LHC
• Triboson interpretations of the ATLAS diboson excess
• Survey of Higgs interpretations of the diboson excesses
• Composite spin-1 resonances at the LHC
• Unitarity implications of diboson resonance in the TeV region for Higgs physics
• Low Scale Composite Higgs Model and 1.8 $\sim$ 2 TeV Diboson Excess
• Diboson Excesses Demystified in Effective Field Theory Approach
• Is the CMS eejj excess a hint for light supersymmetry?
• Unitarity in composite Higgs approaches with vector resonances
• Spin-1 resonances in a non-linear left-right dynamical Higgs context

Cited by in corpus (12)

• Multiboson production in W' decays
• Introducing tools to test Higgs interactions via $WW$ scattering I: one-loop calculations and renormalization in the HEFT
• Top-antitop production from $W_L^{+}{W}_L^{-}$ and $Z_L{Z}_L$ scattering under a strongly-interacting symmetry-breaking sector
• Dynamical vector resonances from the EChL in VBS at the LHC: the WW case
• The Diboson Excess: Experimental Situation and Classification of Explanations; A Les Houches Pre-Proceeding
• The Diboson Excesses in Leptophobic $U(1{)}_{\mathrm{LP}}$ Models from String Theories
• Diboson excess and $Z^{\prime }$-predictions via left-right non-linear Higgs
• Angular observables for spin discrimination in boosted diboson final states
• Diboson resonances within a custodially protected warped extra-dimensional scenario
• Introducing tools to test Higgs interactions via $WW$ scattering II: the coupled channel formalism and scalar resonances
• Heavy Higgs Coupled to Vector-like Quarks: Strong CP Problem and Search Prospects at the 14 TeV LHC
• Comparing mesons and W_L W_L TeV-resonances