2025/11/06 by Pandya, Vibhu, Vinze, Radhika, Misra, Anuradha
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High Energy Physics - Theory (hep-th) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions
paper · doi:10.48550/arxiv.2511.04757
openalex publication_date 2025/11/06 · openalex created_date 2025/11/11 · openalex updated_date 2026/07/28
Precision calculations in hadronic processes at high energy colliders are crucial for improving the understanding of the standard phenomena as well as for the discovery of new physics. Spinor-helicity formalism serves as one of the most efficient ways to simplify the calculations of S matrix elements. In this article, we compute the S matrix elements for the process q\Barq→ q\Barqg mediated by photon and gluon. Ignoring the contribution of Z boson exchange, we show that the calculation of S matrix elements for this process simplifies to a great extent by using spinor-helicity formalism.