5 papers · 1 filter
Massless-Massive Amplitude Correspondence III: Massive Amplitude Bases in the SMEFT
Yu-Han Ni, Hao Sun, Yi-Ning Wang +2
We develop a systematic correspondence between massless contact amplitudes in an unbroken theory and massive contact amplitudes after spontaneous symmetry breaking. Our constructio…
Covariant Construction of Generalized Form Factors
Hao Sun, Tuo Tan, Jiang-Hao Yu
We present a systematic technique for constructing the Lorentz-covariant structures of hadronic matrix elements of local operators. The spinor Young tableaux of the Lorentz group i…
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(…
Complete Operator Basis for the modular invariant SMEFT
Luo-Jia Kang, Hao Sun, Jiang-Hao Yu
We implement modular flavor symmetries within the Standard Model Effective Field Theory (SMEFT) framework, using the flavor group with distinct moduli…
Effective Field Theory Description of Light Dilaton
Qing-Hong Cao, Jian-Nan Ding, Bing-Hui Ge +2
Dilatons, the CP-even pseudo-Nambu-Goldstone bosons arising from spontaneous scale symmetry breaking, offer a compelling alternative to axion-like particles (ALPs) yet lack a compr…