2021/10/08 by Joakim Alnefjord, Alnefjord, Joakim, Andrew Lifson +5
Computer Science · Mathematics · Physics and Astronomy · #Algebraic and Geometric Analysis #Distributed and Parallel Computing Systems #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High Energy Physics - Theory (hep-th) #Noncommutative and Quantum Gravity Theories #Particle physics theoretical and experimental studies
paper · pdf · doi:10.48550/arxiv.2110.04125
openalex publication_date 2021/10/08 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Inspired by the flow description of su(N) colour calculations, we recently\nshowed how to simplify the spinor-helicity formalism (at the algebra level two\ncopies of complexified su(2)) by treating each Weyl spinor as part of a flow\nline with definite chirality and momentum. This formalism, dubbed the\nchirality-flow formalism, eliminates all non-trivial algebra from tree-level\nspinor-helicity calculations, thus allowing the shortest possible route from\nFeynman diagrams to complex numbers (spinor inner products). In this\npresentation, we briefly introduce the main features of this method and show\nsome examples.\n