4 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…
Massive On-shell Splitting Functions in Spinor-Helicity Formalism
Yi-Ning Wang, Chao Wu, Jiang-Hao Yu
Collinear splitting functions govern parton evolution, parton showers, and resummation at high-energy colliders. While on-shell spinor-helicity methods have successfully yielded ma…
Massless-Massive Amplitude Correspondence II: Constructive Massive Amplitudes in Standard Model
Yu-Han Ni, Chao Wu, Jiang-Hao Yu
In the minimal helicity-chirality formalism, we systematically construct higher-point massive amplitudes from the fundamental building blocks: the contact three-point and four-poin…
Massless-Massive Amplitude Correspondence I: Helicity-chirality Matching and On-shell Higgsing
Yu-Han Ni, Chao Wu, Jiang-Hao Yu
In this work, the massless-massive correspondence for the on-shell scattering amplitudes is constructed so the massive amplitudes could inherit advantageous techniques developed in…