Algorithms for numerically stable scattering amplitudes
| Autor: | Bothmann, Enrico, Campbell, John M., Höche, Stefan, Knobbe, Max |
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| Rok vydání: | 2024 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| Popis: | The numerically stable evaluation of scattering matrix elements near the infrared limit of gauge theories is of great importance for the success of collider physics experiments. We present a novel algorithm that utilizes double precision arithmetic and reaches higher precision than a naive quadruple precision implementation at smaller computational cost. The method is based on physics-driven modifications to propagators, vertices and external polarizations. Comment: 5 pages, 1 figure, 2 pages of supplemental material with one additional figure |
| Databáze: | arXiv |
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