2024/03/12 by Neil D. Christensen, Christensen, Neil
Engineering · #BIM and Construction Integration #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Manufacturing Process and Optimization #Nuclear Theory (nucl-th) #Robotic Mechanisms and Dynamics
paper · pdf · doi:10.48550/arxiv.2403.07981
openalex publication_date 2024/03/12 · openalex created_date 2024/03/15 · openalex updated_date 2026/07/28
SPINAS is a C++ package created for the implementation and numerical computation of phase-space points of constructive amplitudes in particle physics. This package contains a suite of classes and methods for handling particles, propagators, spinor products, and processes. SPINAS is structured to offer straightforward usability while ensuring maximum efficiency. This is achieved through a design that emphasizes the storage and reuse of intermediate results within amplitude calculations for each phase-space point. We include a user guide describing how to use the components, a complete example of how to use SPINAS for a scattering amplitude, a discussion of the design and implementation useful for those wishing to contribute, and a discussion of our validation of this package, including both a validation of individual components of the package and a comparison of a complete set of Standard Model processes with Feynman diagrams.