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A global analysis of axion-like particle interactions using SMEFT fits

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arxiv 2307.10372 v2 pith:6EPXGL4E submitted 2023-07-19 hep-ph

Anke Biekötter , Javier Fuentes-Martín , Anne Mareike Galda , Matthias Neubert This is my paper · ORCID
classification hep-ph
keywords boundsinteractionsmodelsmeftanalysisaxion-likeglobalparticle
verification ladder T0 review T1 audit T2 compute T3 formal

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In the presence of an axion or axion-like particle (ALP) that couples to the Standard Model via dimension-five interactions, dimension-six SMEFT interactions are generated via renormalization-group evolution. As many of these SMEFT contributions are experimentally tightly constrained, this "ALP-SMEFT interference" can be used to derive indirect bounds on the ALP couplings to the Standard Model particles. We present a global analysis of the Wilson coefficients of the ALP effective Lagrangian based on Higgs, top, and low-energy data. The obtained bounds are model independent and are competitive or even stronger than direct bounds in the GeV to TeV ALP-mass range.

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Cited by 5 Pith papers

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

  1. Electroweak precision observables at NLL order in the SMEFT

    hep-ph 2026-08 accept novelty 6.0 of 10

    SMEFT electroweak precision predictions can be upgraded to NLL accuracy using two-loop renormalization-group evolution plus one-loop matching, yielding complete 210-coefficient expressions and stronger indirect new-ph...

  2. Agentic Re-Casting using Agentic Re-Simulations

    hep-ph 2026-07 conditional novelty 6.0 of 10

    An agentic AI system with a physicist in the loop re-casts an ATLAS ttZ measurement into a global top-quark SMEFT fit and recovers injected coloron Wilson coefficients in a repeatable benchmark.

  3. ALP pair production at the LHC

    hep-ph 2026-07 conditional novelty 6.0 of 10

    Non-resonant gg→aa→4γ production could constrain the dimension-6 ALP-gluon coupling down to ~10^-3 TeV^-2 at 300 fb^-1, but the allowed parameter space remains unbounded along multiple flat directions.

  4. Saving or Destroying the Universe with Axion-Like Particles

    hep-ph 2025-06 conditional novelty 6.0 of 10

    ALP couplings can both stabilize and destabilize the Higgs vacuum, and a hand-picked set of ALP couplings can unify the gauge couplings near 10^15 GeV.

  5. Axions and Axion-like particles: collider searches

    hep-ph 2025-08 accept

    A pedagogical review of the ALP effective field theory, production and decay at colliders, indirect search strategies, and a summary of current bounds on the ALP-photon coupling.

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