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arxiv: 2411.02483 · v2 · pith:FWJUEM4Rnew · submitted 2024-11-04 · ✦ hep-ph · hep-ex· hep-th

LHC EFT WG Note: Basis for Anomalous Quartic Gauge Couplings

Gauthier Durieux , Grant N. Remmen , Nicholas L. Rodd , O. J. P. \'Eboli , M. C. Gonzalez-Garcia , Dan Kondo , Hitoshi Murayama , Risshin Okabe This is my paper
classification ✦ hep-ph hep-exhep-th
keywords gaugequarticanomalousbasiscouplingsnoteaqgcsbosons
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In this note, we give a definitive basis for the dimension-eight operators leading to quartic -- but no cubic -- interactions among electroweak gauge bosons. These are often called anomalous quartic gauge couplings, or aQGCs. We distinguish in particular the CP-even ones from their CP-odd counterparts.

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  1. Full positivity bounds for anomalous quartic gauge couplings in SMEFT

    hep-ph 2026-03 unverdicted novelty 7.0

    Complete positivity bounds for the 22 aQGC coefficients in SMEFT restrict the viable parameter space to approximately 0.0313% of the naive total.