Numerical Computation of Two-loop Box Diagrams with Masses
| Autor: | Yuasa, F., de Doncker, E., Hamaguchi, N., Ishikawa, T., Kato, K., Kurihara, Y., Fujimoto, J., Shimizu, Y. |
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| Rok vydání: | 2011 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1016/j.cpc.2012.05.018 |
| Popis: | A new approach is presented to evaluate multi-loop integrals, which appear in the calculation of cross-sections in high-energy physics. It relies on a fully numerical method and is applicable to a wide class of integrals with various mass configurations. As an example, the computation of two-loop planar and non-planar box diagrams is shown. The results are confirmed by comparisons with other techniques, including the reduction method, and by a consistency check using the dispersion relation. Comment: 16 pages, 8 figures |
| Databáze: | arXiv |
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