4 papers
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…
An introduction to gauge theories and group theory in particle physics
Hao-Lin Li, Hao Sun, Ming-Lei Xiao +1
In this review, the fundamental concepts of group theory and representation theory are introduced. Special emphasis is placed on the unitary irreducible representations of the $SU(…
On-Shell Renormalization of Dim-8 SMEFT from Complete Amplitude Basis: I. Four-Fermion Operators
Chao Wu, Ming-Lei Xiao, Jiang-Hao Yu +1
We compute the complete one-loop renormalization group equations (RGEs) for all the four-fermion operators at dimension-8 Standard Model Effective Field Theory (SMEFT). We adopt th…
Gauged Soft Recursion: On-Shell Construction of Goldstone-Gauge Amplitudes
Ian Low, Ming-Lei Xiao, Yu-Hui Zheng
We present a new on-shell recursion relation for scattering amplitudes involving Nambu-Goldstone bosons with a gauged unbroken symmetry. A central challenge is that gauge interacti…