Speaker
Chao WU(中国科学院理论物理研究所)
Description
We present an on-shell constructive formalism for massive collinear splitting functions based on Soper-Weinberg collinear spinors, whose transformation properties follow from a light-front Galilean subgroup of the Poincaré group. The leading-order structures are matched to massless three-point amplitudes, while an additional Higgs momentum along an anti-collinear direction probes the subleading spinor components and relates them to massless four-point amplitudes.
