Causal representation of multi-loop Feynman integrands within the loop-tree duality
Abstract The numerical evaluation of multi-loop scattering amplitudes in the Feynman representation usually requires to deal with both physical (causal) and unphysical (non-causal) singularities. The loop-tree duality (LTD) offers a powerful framework to easily characterise and distinguish these two...
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| Principais autores: | , , , , |
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| Formato: | Artigo |
| Idioma: | Inglês |
| Publicado em: |
SpringerOpen
2021-01-01
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| coleção: | Journal of High Energy Physics |
| Assuntos: | |
| Acesso em linha: | https://doi.org/10.1007/JHEP01(2021)069 |
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