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

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URI: https://hdl.handle.net/10481/85302
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Autor
Biekötter, Anke; Fuentes Martín, Javier; Galda, Anne Mareike; Neubert, Matthias
Editorial
Springer Nature
Materia
Axions and ALPs
 
SMEFT
 
Fecha
2023-09-19
Referencia bibliográfica
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]
Patrocinador
European Union NextGenerationEU/PRTR IJC2020-043549-I; State Research Agency PID2019-106087GB-C22, PID2022-139466NB-C21; Alexander von Humboldt-Stiftung AvH; Ministerio de Ciencia e Innovación MICINN; European Regional Development Fund ERDF; Junta de Andalucía 39083149, EXC 2118/1, FQM101, P21_00199
Resumen
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.
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