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Flavour symmetries in the SMEFT

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arxiv 2005.05366 v1 pith:LVCNCYA5 submitted 2020-05-11 hep-ph

classification hep-ph
keywords symmetriesflavouroperatorspresentedanalyseanalysesbreakingbrief
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abstract

We analyse how $U(3)^5$ and $U(2)^5$ flavour symmetries act on the Standard Model Effective Field Theory, providing an organising principle to classify the large number of dimension-six operators involving fermion fields. A detailed counting of such operators, at different order in the breaking terms of both these symmetries, is presented. A brief discussion about possible deviations from these two reference cases, and a simple example of the usefulness of this classification scheme for high-$p_T$ analyses at the LHC, are also presented.

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Cited by 3 Pith papers

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

  1. Flavor constraints from $pp\to Vh$ and $pp\to VW$ at the LHC

    hep-ph 2025-09 conditional novelty 6.0 of 10

    LHC data on pp→Vh and pp→VW yield general-flavor SMEFT constraints that will become competitive with flavor tests of the Cabibbo-angle anomaly at the HL-LHC.

  2. Connecting $t$-channel Dark Matter Models to the Standard Model Effective Field Theory

    hep-ph 2025-07 conditional novelty 6.0 of 10

    One-loop SMEFT Wilson coefficients for leptophilic t-channel dark matter, combined with global fits, exclude large coupling regions, especially C_ell_ell for doublet mediators and C_ed above 3 TeV.

  3. Flavor and CP Symmetries in the Standard Model Effective Field Theory

    hep-ph 2025-02 conditional novelty 6.0 of 10

    A CP classification of dimension-six and dimension-eight SMEFT operators is combined with minimal flavor violation to reduce independent CP-violating Wilson coefficient phases to 26 and 655 respectively.

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