English

Hadronic contributions to $a_\mu$ within Resonance Chiral Theory

High Energy Physics - Phenomenology 2026-02-10 v1 High Energy Physics - Experiment High Energy Physics - Lattice

Abstract

We review the recent progress achieved, using Resonance Chiral Theory, in the hadronic contributions to the muon anomalous magnetic moment. These include the hadronic vacuum polarization, either using e+ee^+e^- or τ\tau decays into hadron final states as input; and the hadronic light-by-light part, where in addition to previous results on the lightest pseudoscalar and tensor-poles contributions, we first present the evaluation of the pseudoscalar box using this formalism. We also discuss the scalar, axial-pole and other subleading pieces. The results obtained are consistent with the White Paper 2 values, with comparable precision.

Keywords

Cite

@article{arxiv.2512.10161,
  title  = {Hadronic contributions to $a_\mu$ within Resonance Chiral Theory},
  author = {Emilio J. Estrada and Alejandro Miranda and Pablo Roig},
  journal= {arXiv preprint arXiv:2512.10161},
  year   = {2026}
}

Comments

32 pages, 1 figure, 1 table. Invited review. Version accepted for publication in EPJ ST