Production cross section estimates for strongly-interacting Electroweak Symmetry Breaking Sector resonances at particle colliders

Abstract

We are exploring a generic strongly-interacting Electroweak Symmetry Breaking Sector (EWSBS) with the low-energy effectie field theory for the four experimentally known particles ($W_L^{\pm }$, $Z_L$, $h$) and its dispersion-relation based unitary extension. In this contribution we provide simple estimates for the production cross section of pairs of the EWSBS bosons and their resonances at proton-proton colliders as well as in a future $e^{-}{e}^{+}$ (or potentially a ${\mu }^{-}{\mu }^{+}$) collider with a typical few-TeV energy. We examine the simplest production mechanisms, tree-level production through a $W$ (dominant when quantum numbers allow) and the simple effective boson approximation (in which the electroweak bosons are considered as collinear partons of the colliding fermions). We exemplify with custodial isovector and isotensor resonances at 2 TeV, the energy currently being discussed because of a slight excess in the ATLAS 2-jet data. We find it hard, though not unthinkable, to ascribe this excess to one of these $W_L{W}_L$ rescattering resonances. An isovector resonance could be produced at a rate smaller than, but close to earlier CMS exclusion bounds, depending on the parameters of the effective theory. The $ZZ$ excess is then problematic and requires additional physics (such as an additional scalar resonance). The isotensor one (that would describe all charge combinations) has a smaller cross section.

15 pages, 8 figures

References in corpus (11)

• 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
• The Inverse Amplitude Method and Adler Zeros
• Longitudinal WW scattering in light of the "Higgs" discovery
• One-loop $\gamma \gamma \to W_L^{+}{W}_L^{-}$ and $\gamma \gamma \to Z_L{Z}_L$ from the Electroweak Chiral Lagrangian with a light Higgs-like scalar
• Note on Anomalous Higgs-Boson Couplings in Effective Field Theory
• Sigma Decomposition
• Unitarity, analyticity, dispersion relations and resonances in strongly interacting $W_L{W}_L$, $Z_L{Z}_L$ and $hh$ scattering
• Possible new resonance from $W_L{W}_L$-$hh$ interchannel coupling
• Triboson interpretations of the ATLAS diboson excess
• Unitarity in composite Higgs approaches with vector resonances

Cited by in corpus (10)

• Studies of Dimension-Six EFT effects in Vector Boson Scattering
• Multiboson production in W' decays
• Production of vector resonances at the LHC via WZ-scattering: a unitarized EChL analysis
• Systematizing and addressing theory uncertainties of unitarization with the Inverse Amplitude Method
• Strongly coupled theories beyond the Standard Model
• The Diboson Excesses in an Anomaly Free Leptophobic Left-Right Model
• Diboson anomaly: heavy Higgs resonance and QCD vector-like exotics
• The Diboson Excess: Experimental Situation and Classification of Explanations; A Les Houches Pre-Proceeding
• Resonances in W_L W_L, Z_L Z_L and hh scattering from dispersive analysis of the non-linear Electroweak+Higgs Effective Theory
• Comparing mesons and W_L W_L TeV-resonances