Study of the Electroweak Symmetry Breaking Sector for the LHC

López, Rafael Delgado

doi:10.1007/978-3-319-60498-5

Cited by 5 publications

(1 citation statement)

References 135 publications

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“…In this appendix we very briefly discuss the chiral Lagrangian in the electroweak context, particularly its coupling to photons: its extension to HEFT has been presented in our other publications, most recently in [76]. The scattering amplitudes γγ → {W + L W − L , Z L Z L } used in this work have also been obtained in somewhat more detail in our previous work [38] and [24,77] (purely EW sector terms). They are additionally mentioned in the CERN Yellow Report of the Higgs Cross Section Working Group [71].…”

Section: A Elecroweak Chiral Lagrangianmentioning

confidence: 99%

Collider production of electroweak resonances from γγ states

Delgado

Dobado

Espada

et al. 2018

J. High Energ. Phys.

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We estimate production cross sections for 2-body resonances of the Electroweak Symmetry Breaking sector (in WLWL and ZLZL rescattering) from γγ scattering. We employ unitarized Higgs Effective Field Theory amplitudes previously computed coupling the two photon channel to the EWSBS. We work in the Effective Photon Approximation and examine both e − e + collisions at energies of order 1-2 TeV (as relevant for future lepton machines) and pp collisions at LHC energies. Dynamically generating a spin-0 resonance around 1.5 TeV (by appropriately choosing the parameters of the effective theory) we find that the differential cross section per unit s, p 2 t is of order 0.01 fbarn/TeV 4 at the LHC. Injecting a spin-2 resonance around 2 TeV we find an additional factor 100 suppression for pt up to 200 GeV. The very small cross sections put these γγ processes, though very clean, out of reach of immediate future searches.

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Section: A Elecroweak Chiral Lagrangianmentioning

confidence: 99%

Collider production of electroweak resonances from γγ states

Delgado

Dobado

Espada

et al. 2018

J. High Energ. Phys.

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Production of two, three, and four Higgs bosons: where SMEFT and HEFT depart

Delgado,

Gómez-Ambrosio,

Martínez-Martín

et al. 2024

J. High Energ. Phys.

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In this article we study the phenomenological implications of multiple Higgs boson production from longitudinal vector boson scattering in the context of effective field theories. We find compact representations for effective tree-level amplitudes with up to four final state Higgs bosons. Total cross sections are then computed for scenarios relevant at the LHC in which we find the general Higgs Effective Theory (HEFT) prediction avoids the heavy suppression observed in Standard Model Effective Field Theory (SMEFT).

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Software tools for computing EW chiral amplitudes

Martín

Sanz-Cillero

2023

Nuclear and Particle Physics Proceedings

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Study of the Electroweak Symmetry Breaking Sector for the LHC

Cited by 5 publications

References 135 publications

Collider production of electroweak resonances from γγ states

Collider production of electroweak resonances from γγ states

Production of two, three, and four Higgs bosons: where SMEFT and HEFT depart

Software tools for computing EW chiral amplitudes

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