Energy-enhanced dimension eight SMEFT effects in VBF Higgs production

Abstract We study Higgs boson production via vector boson fusion at the LHC, focusing on the process pp → H + jj and capturing the leading energy-enhanced contributions within the Standard Model Effective Field Theory (SMEFT) up to order 1/Λ4. Employing energy-scaling arguments, we predict the magni...

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Main Authors: Benoît Assi, Adam Martin
Format: Article
Language:English
Published: SpringerOpen 2025-02-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP02(2025)029
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author Benoît Assi
Adam Martin
author_facet Benoît Assi
Adam Martin
author_sort Benoît Assi
collection DOAJ
description Abstract We study Higgs boson production via vector boson fusion at the LHC, focusing on the process pp → H + jj and capturing the leading energy-enhanced contributions within the Standard Model Effective Field Theory (SMEFT) up to order 1/Λ4. Employing energy-scaling arguments, we predict the magnitude of each higher-dimensional operator’s contribution. Utilizing the geometric formulation of SMEFT, our analysis incorporates dimension-eight operators not previously considered. We find that the kinematics of vector boson fusion — characterized by two highly forward jets — tend to suppress contributions from higher-dimensional operators, requiring a lower scale Λ for SMEFT effects to become observable. This suggests that the SMEFT remains valid for lower Λ than expected. Combined with the fact that LEP constrains the dimension-six operators with the most considerable impact on vector boson fusion, a regime exists where dimension-eight operators can have significant effects. In many cases, these dimension-eight operators also influence associated production processes like pp → HV(jj), though differences in analysis cuts and kinematics mean this is not always the case. Our findings provide insights that could refine the search for SMEFT signals in collider experiments.
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spelling doaj-art-10c4574344de49279ecd2d85177938c22025-02-09T12:08:34ZengSpringerOpenJournal of High Energy Physics1029-84792025-02-012025213310.1007/JHEP02(2025)029Energy-enhanced dimension eight SMEFT effects in VBF Higgs productionBenoît Assi0Adam Martin1Particle Theory Department, FermilabDepartment of Physics, University of Notre DameAbstract We study Higgs boson production via vector boson fusion at the LHC, focusing on the process pp → H + jj and capturing the leading energy-enhanced contributions within the Standard Model Effective Field Theory (SMEFT) up to order 1/Λ4. Employing energy-scaling arguments, we predict the magnitude of each higher-dimensional operator’s contribution. Utilizing the geometric formulation of SMEFT, our analysis incorporates dimension-eight operators not previously considered. We find that the kinematics of vector boson fusion — characterized by two highly forward jets — tend to suppress contributions from higher-dimensional operators, requiring a lower scale Λ for SMEFT effects to become observable. This suggests that the SMEFT remains valid for lower Λ than expected. Combined with the fact that LEP constrains the dimension-six operators with the most considerable impact on vector boson fusion, a regime exists where dimension-eight operators can have significant effects. In many cases, these dimension-eight operators also influence associated production processes like pp → HV(jj), though differences in analysis cuts and kinematics mean this is not always the case. Our findings provide insights that could refine the search for SMEFT signals in collider experiments.https://doi.org/10.1007/JHEP02(2025)029Electroweak Precision PhysicsHiggs ProductionSMEFT
spellingShingle Benoît Assi
Adam Martin
Energy-enhanced dimension eight SMEFT effects in VBF Higgs production
Journal of High Energy Physics
Electroweak Precision Physics
Higgs Production
SMEFT
title Energy-enhanced dimension eight SMEFT effects in VBF Higgs production
title_full Energy-enhanced dimension eight SMEFT effects in VBF Higgs production
title_fullStr Energy-enhanced dimension eight SMEFT effects in VBF Higgs production
title_full_unstemmed Energy-enhanced dimension eight SMEFT effects in VBF Higgs production
title_short Energy-enhanced dimension eight SMEFT effects in VBF Higgs production
title_sort energy enhanced dimension eight smeft effects in vbf higgs production
topic Electroweak Precision Physics
Higgs Production
SMEFT
url https://doi.org/10.1007/JHEP02(2025)029
work_keys_str_mv AT benoitassi energyenhanceddimensioneightsmefteffectsinvbfhiggsproduction
AT adammartin energyenhanceddimensioneightsmefteffectsinvbfhiggsproduction