swMATH ID: 44392
Software Authors: Greljo, Admir; Palavrić, Ajdin; Thomsen, Anders Eller
Description: Adding flavor to the SMEFT. We study the flavor structure of the lepton and baryon number-conserving dimension-6 operators in the Standard Model effective field theory (SMEFT). Building on the work of [D. A. Faroughy et al., “Flavour symmetries in the SMEFT””, J. High Energy Phys. 2020, No. 8, Paper No. 166, 37 p. (2020; doi:10.1007/JHEP08(2020)166)], we define several well-motivated flavor symmetries and symmetry-breaking patterns that serve as competing hypotheses about the ultraviolet (UV) dynamics beyond the SM, not far above the TeV scale. In particular, we consider four different structures in the quark sector and seven in the charged lepton sector. The set of flavor-breaking spurions is (almost) always taken to be the minimal one needed to reproduce the observed charged fermion masses and mixings. For each case, we explicitly construct and count the operators to the first few orders in the spurion expansion, providing ready-for-use setups for phenomenological studies and global fits. We provide a Mathematica package SMEFTflavor (https://github.com/aethomsen/SMEFTflavor) to facilitate similar analyses for flavor symmetries not covered in this work.
Homepage: https://arxiv.org/abs/2203.09561
Source Code:  https://github.com/aethomsen/SMEFTflavor
Dependencies: Mathematica
Keywords: flavour symmetries; SMEFT; theories of flavour; High Energy Physics; arXiv_hep-ph; arXiv_hep-ex
Related Software: DsixTools; Matchmakereft; SuperTracer; STrEAM; Mathematica
Cited in: 1 Publication

Standard Articles

1 Publication describing the Software, including 1 Publication in zbMATH Year
Adding flavor to the SMEFT. Zbl 07653763
Greljo, Admir; Palavrić, Ajdin; Thomsen, Anders Eller

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