Energy-enhanced dimension eight SMEFT effects in VBF Higgs production

A bstract 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 / Λ 4 . Employing energy-scaling arguments, we predict the...

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Vydané v:The journal of high energy physics Ročník 2025; číslo 2; s. 29 - 33
Hlavní autori: Assi, Benoît, Martin, Adam
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: Berlin/Heidelberg Springer Berlin Heidelberg 06.02.2025
Springer Nature B.V
SpringerOpen
Predmet:
Classical and Quantum Gravitation
Dimensional analysis
Electroweak Precision Physics
Elementary Particles
Field theory
Higgs bosons
Higgs Production
High energy physics
Kinematics
Large Hadron Collider
Operators (mathematics)
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Quantum Physics
Regular Article - Theoretical Physics
Relativity Theory
SMEFT
String Theory
Vectors (mathematics)
Higgs Production
SMEFT
Electroweak Precision Physics
ISSN:1029-8479, 1029-8479
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Popis
Shrnutí:A bstract 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 / Λ 4 . 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.
Bibliografia:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:1029-8479
1029-8479
DOI:10.1007/JHEP02(2025)029