Work

Energy-enhanced expansion of the standard model effective field theory

Year: 2025

Type: article

Abstract: We formalize energy-scaling arguments in the standard model effective field theory (SMEFT) to estimate the effects of operators up to dimension ten. Our approach relies on weakly coupled UV completions with no presumed large hierarchies between the Wilson coefficients. We introduce a classification based on the number of external legs and an energy-counting parameter. We establish a dual expansion in v / Λ and E / Λ . Extending to four-, five-, and six-particle vertices, our framework highlights energy-enhanced operators that dominate high-energy processes at the High Luminosity-Large Hadron Collider. This organization streamlines experimental analyses to only include operators with energetic impact in their analyses and enhances the discoverability of new physics within the SMEFT framework.

Source: Physical review. D/Physical review. D.

DOI: 10.1103/s18f-xch8

Authors: Benoît Assi, Adam Martin

Institutions: Fermi National Accelerator Laboratory, University of Cincinnati, University of Notre Dame

Language: English

Topic: Particle physics theoretical and experimental studies

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid