Triboson production in the SMEFT
Triboson production in the SMEFT
We study the production of three electroweak gauge bosons at the LHC, in the effective field theory of the standard model, at dimension six and next-to-leading order in QCD. We present results for inclusive cross-sections and differential distributions, finding that these QCD corrections are large, often vary across the phase-space and notably differ from those observed in the standard model. We then explore the potential of the recently observed triboson production processes for improving the sensitivity brought by electroweak precision observables and diboson data. The additional sensitivity we observe is dominated by resonant Higgs boson contributions, with decays to photon pairs in particular. A global analysis including Higgs boson data is therefore needed for a fair assessment of the future reach of triboson measurements on heavy new physics.
hep-ph, hep-ex
Celada, Eugenia
72be2afb-2952-4734-88dc-263dcac52c1c
Durieux, Gauthier
e6047c56-1a99-45b8-a3f8-b03ff64f6c0f
Mimasu, Ken
be4d4828-5d71-4c3f-a8d1-81d62a9d2e33
Vryonidou, Eleni
ff52e720-9a39-413e-a7ab-7f43e693683f
Celada, Eugenia
72be2afb-2952-4734-88dc-263dcac52c1c
Durieux, Gauthier
e6047c56-1a99-45b8-a3f8-b03ff64f6c0f
Mimasu, Ken
be4d4828-5d71-4c3f-a8d1-81d62a9d2e33
Vryonidou, Eleni
ff52e720-9a39-413e-a7ab-7f43e693683f
[Unknown type: UNSPECIFIED]
Abstract
We study the production of three electroweak gauge bosons at the LHC, in the effective field theory of the standard model, at dimension six and next-to-leading order in QCD. We present results for inclusive cross-sections and differential distributions, finding that these QCD corrections are large, often vary across the phase-space and notably differ from those observed in the standard model. We then explore the potential of the recently observed triboson production processes for improving the sensitivity brought by electroweak precision observables and diboson data. The additional sensitivity we observe is dominated by resonant Higgs boson contributions, with decays to photon pairs in particular. A global analysis including Higgs boson data is therefore needed for a fair assessment of the future reach of triboson measurements on heavy new physics.
Text
2407.09600v1
- Author's Original
More information
Accepted/In Press date: 12 July 2024
Additional Information:
9 figures, 14 tables
Keywords:
hep-ph, hep-ex
Identifiers
Local EPrints ID: 496013
URI: http://eprints.soton.ac.uk/id/eprint/496013
PURE UUID: 454900f9-8c6e-457c-8600-2db4e8407b94
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Date deposited: 29 Nov 2024 16:06
Last modified: 30 Nov 2024 03:14
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Contributors
Author:
Eugenia Celada
Author:
Gauthier Durieux
Author:
Ken Mimasu
Author:
Eleni Vryonidou
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