10 papers
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…
Flavor and CP Symmetries in the Standard Model Effective Field Theory
Hao Sun, Jiang-Hao Yu
The CP properties of effective operators are closely related to the spacetime and internal symmetries, such as the flavor symmetry, in the standard model effective field theory (SM…
Chiral Effective Field Theories for Strong and Weak Dynamics
Hao Sun, Yi-Ning Wang, Jiang-Hao Yu
The chiral effective field theory (ChEFT) is an extension of the chiral perturbation theory that includes the nuclear forces and weak currents at the hadronic and nuclear scales. W…
Systematic Spurion Matching between Low Energy EFT and Chiral Lagrangian
Chuan-Qiang Song, Hao Sun, Jiang-Hao Yu
The hadronic chiral Lagrangian can be matched from the low energy effective field theory (LEFT) operators at the quark level. Traditionally, as the mass dimension of the LEFT opera…
Complete CP-eigen Bases of Meson-Baryon Chiral Lagrangian up to -order
Chuan-Qiang Song, Hao Sun, Jiang-Hao Yu
Chiral perturbation theory describes the low energy dynamics of mesons and baryons in terms of the nonlinear Goldstone boson and fermion degrees of freedom. Through the Young tenso…
Complete Eigen-bases of Mesonic Chiral Lagrangian up to -order
Xuan-He Li, Hao Sun, Feng-Jie Tang +1
Chiral perturbation theory systematically describes the low energy dynamics of meson and baryons using nonlinear Nambu-Goldstone fields. Using the Young tensor technique, we constr…