Hypergeometric series representations of Feynman integrals by GKZ hypergeometric systems
Abstract We show that almost all Feynman integrals as well as their coefficients in a Laurent series in dimensional regularization can be written in terms of Horn hypergeometric functions. By applying the results of Gelfand-Kapranov-Zelevinsky (GKZ) we derive a formula for a class of hypergeometric...
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| Formato: | Artigo |
| Idioma: | Inglês |
| Publicado em: |
SpringerOpen
2020-04-01
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| coleção: | Journal of High Energy Physics |
| Assuntos: | |
| Acesso em linha: | http://link.springer.com/article/10.1007/JHEP04(2020)121 |
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