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Título: | A tree-loop duality relation at two loops and beyond |
Autor: | Bierenbaum, Isabella CSIC; Catani, Stefano; Rodrigo, Germán CSIC ORCID ; Draggiotis, Petros CSIC | Fecha de publicación: | oct-2010 | Editor: | Springer Nature | Citación: | Journal of High Energy Physics 2010 (10): 073 (2010) | Resumen: | The duality relation between one-loop integrals and phase-space integrals, developed in a previous work, is extended to higher-order loops. The duality relation is realized by a modification of the customary +i0 prescription of the Feynman propagators, which compensates for the absence of the multiple-cut contributions that appear in the Feynman tree theorem. We rederive the duality theorem at one-loop order in a form that is more suitable for its iterative extension to higher-loop orders. We explicitly show its application to two-and three-loop scalar master integrals, and we discuss the structure of the occurring cuts and the ensuing results in detail. | Versión del editor: | http://dx.doi.org/10.1007/JHEP10(2010)073 | URI: | http://hdl.handle.net/10261/41951 | DOI: | 10.1007/JHEP10(2010)073 | ISSN: | 1126-6708 |
Aparece en las colecciones: | (IFIC) Artículos |
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tree.pdf | 211,09 kB | Adobe PDF | Visualizar/Abrir |
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