A global analysis of axion-like particle interactions using SMEFT fits Biekötter, Anke Fuentes Martín, Javier Galda, Anne Mareike Neubert, Matthias Axions and ALPs SMEFT We thank Martín González Alonso for sharing the χ2 of the global fit in [60], and the authors of [38] for providing us with a Mathematica version of their results. A.B. gratefully acknowledges support from the Alexander-von-Humboldt foundation as a Feodor Lynen Fellow. J.F.M. thanks the Theoretical High Energy Physics Department at JGU Mainz for hospitality and support during his stay as a visitor. The work of J.F.M. is supported by the Spanish Ministry of Science and Innovation (MCIN) and the European Union NextGenerationEU/PRTR under grant IJC2020-043549-I, by the MCIN and State Research Agency (SRA) projects PID2019-106087GB-C22 and PID2022-139466NB-C21 (ERDF), and by the Junta de Andalucía projects P21_00199 and FQM101. The research of A.M.G. and M.N. was supported by the Cluster of Excellence Precision Physics, Fundamental Interactions and Structure of Matter (PRISMA+ — EXC 2118/1) within the German Excellence Strategy (project ID 39083149). In the presence of axions or axion-like particles (ALPs) that couple 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. 2023-10-27T09:52:45Z 2023-10-27T09:52:45Z 2023-09-19 journal article Biekötter, A., Fuentes-Martín, J., Galda, A.M. et al. A global analysis of axion-like particle interactions using SMEFT fits. J. High Energ. Phys. 2023, 120 (2023). [https://doi.org/10.1007/JHEP09(2023)120] https://hdl.handle.net/10481/85302 10.1007/JHEP09(2023)120 eng info:eu-repo/grantAgreement/EC/NextGenerationEU/IJC2020-043549-I http://creativecommons.org/licenses/by/4.0/ open access Atribución 4.0 Internacional Springer Nature