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hep-ph2026
Complete UV Resonances of SMEFT Dim-9 Operators for Short-range Neutrinoless Double Beta Decay
Hao-Lin Li, Yu-Han Ni, Ming-Lei Xiao +2
We present a systematic classification of tree-level ultraviolet (UV) completions for dimension-nine SMEFT operators relevant to short-range neutrinoless double beta decay. Using t…
hep-ph2025
Partial-Wave Unitarity Bounds on Higher-Dimensional Operators from 2-to- Scattering
Céline Degrande, Hao-Lin Li, Ling-Xiao Xu
We present a systematic method for deriving partial-wave unitarity bounds on Wilson coefficients of higher-dimensional operators in effective field theories involving more than fou…
hep-ph2024
Understanding the SM gauge group from SMEFT
Hao-Lin Li, Ling-Xiao Xu
We discuss heavy particles that can be used to pin down the faithful Standard Model (SM) gauge group and their patterns in the SM effective field theory (SMEFT). These heavy partic…