| Autor: |
T. Dennen, I. Prlina, M. Spradlin, S. Stanojevic, A. Volovich |
| Jazyk: |
angličtina |
| Rok vydání: |
2017 |
| Předmět: |
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| Zdroj: |
Journal of High Energy Physics, Vol 2017, Iss 6, Pp 1-29 (2017) |
| Druh dokumentu: |
article |
| ISSN: |
1029-8479 |
| DOI: |
10.1007/JHEP06(2017)152 |
| Popis: |
Abstract We propose a simple geometric algorithm for determining the complete set of branch points of amplitudes in planar N $$ \mathcal{N} $$ = 4 super-Yang-Mills theory directly from the amplituhedron, without resorting to any particular representation in terms of local Feynman integrals. This represents a step towards translating integrands directly into integrals. In particular, the algorithm provides information about the symbol alphabets of general amplitudes. We illustrate the algorithm applied to the one- and two-loop MHV amplitudes. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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