SMuK 2023 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 74: Poster

HK 74.31: Poster

Donnerstag, 23. März 2023, 17:30–19:00, HSZ EG

The ComPWA project: speeding up amplitude analysis with a Computer Algebra System — •Remco de Boer¹, Miriam Fritsch¹, Wolfgang Gradl², Stefan Pflüger¹, and Leonard Wollenberg¹ — ¹Ruhr-Universität Bochum — ²Johannes Gutenberg Universität Mainz

In the ideal world, we describe our models with recognizable mathematical expressions and directly fit those models to large data samples with high performance. It turns out that this can be done with a CAS, using its symbolic expression trees as a template to computational back-ends like JAX. The CAS can in fact further simplify the expression tree, which can result in speed-ups in the numerical back-end.

The ComPWA project offers Python libraries that use this principle to formulate large expressions for amplitude analysis, so that the user has the flexibility to quickly implement different formalisms and can easily perform fast computations on large data samples. The CAS additionally allows the project to standardise and automatically document these formalisms as they are being implemented.