Cargando…
Evaluating multi-loop Feynman diagrams with infrared and threshold singularities numerically
We present a method to evaluate numerically Feynman diagrams directly from their Feynman parameters representation. We first disentangle overlapping singularities using sector decomposition. Threshold singularities are treated with an appropriate contour deformation. We have validated our technique...
| Autores principales: | , , |
|---|---|
| Lenguaje: | eng |
| Publicado: |
2007
|
| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1088/1126-6708/2007/05/071 http://cds.cern.ch/record/1026199 |