The full set of CP-even dimension-8 SMEFT amplitudes for gluon-fusion W+W- production is computed; their SM interference is shown to be negligible under EFT hierarchy, and new operator constraints are derived.
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Dimension-8 operators in $W^+W^-$ production via gluon fusion
The full set of CP-even dimension-8 SMEFT amplitudes for gluon-fusion W+W- production is computed; their SM interference is shown to be negligible under EFT hierarchy, and new operator constraints are derived.