The symbol and alphabet of two-loop NMHV amplitudes from Q ¯ $$ \overline{Q} $$ equations

Abstract We study the symbol and the alphabet for two-loop NMHV amplitudes in planar N $$ \mathcal{N} $$ = 4 super-Yang-Mills from the Q ¯ $$ \overline{Q} $$ equations, which provide a first-principle method for computing multi-loop amplitudes. Starting from one-loop N2MHV ratio functions, we explai...

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Bibliografische gegevens
Hoofdauteurs: Song He, Zhenjie Li, Chi Zhang
Formaat: Artikel
Taal:English
Gepubliceerd in: SpringerOpen 2021-03-01
Reeks:Journal of High Energy Physics
Onderwerpen:
Online toegang:https://doi.org/10.1007/JHEP03(2021)278