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Renormalization of effective field theories via on-shell methods: the case of axion-like particles

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arxiv 2412.04160 v2 pith:6QFKOGUG submitted 2024-12-05 hep-ph hep-th

Luigi C. Bresciani , Giacomo Brunello , Gabriele Levati , Pierpaolo Mastrolia , Paride Paradisi This is my paper · ORCID
classification hep-phhep-th
keywords methodsaxion-likecaseeffectivefieldintegrationon-shellrenormalization
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We consider the most general axion-like particle effective field theory, including both CP-odd and CP-even types of interactions, and evaluate the corresponding renormalization group equations, improving and extending previous results in the literature. Our calculations exploit on-shell and unitarity-based methods. The relevant phase-space cut-integrals are carried out using different integration methods, among which the double-cut integration via Stokes' theorem proves to be technically simpler. A close comparison between the standard Feynman diagrammatic approach and the unitarity-based method enables us to explicitly verify the reduction of complexity in the latter case, along with a more direct and elegant way to establish a connection among anomalous dimensions of operators that are dual under the CP symmetry.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Renormalization of general Effective Field Theories: Formalism and renormalization of bosonic operators

    hep-ph 2025-01 conditional novelty 7.0 of 10

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  3. Positivity and partial wave unitarity bounds on ALP theories via amplitude methods

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