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A216892 Number of unspecified amplitude coefficients in an n-particle supersymmetric Yang-Mills Lagrangian (with maximum helicity violation, 4 charges) on the three-loop level. 0
6, 17, 33, 63, 109, 178, 277 (list; graph; refs; listen; history; text; internal format)
OFFSET
5,1
COMMENTS
Taken from Table 2 of Golden and Spradin. The terms contributing to the three-loop basis are symmetrized over the allowed planar diagrams, but no constraint related to removal of UV divergencies has yet been added to fix some of the coefficients.
LINKS
N. Arkani-Hamed, J. Bourjaily, F. Cachazo, and J. Trnka, Local integrals for planar scattering amplitudes, arXiv:1012.6032 [hep-th], 2010.
J. Golden and M. Spradin, Collinear and soft limits of multi-loop integrands in N=4 Yang-Mills, arXiv:1203.1915 [hep-th], 2012, Table 2.
CROSSREFS
Cf. A006918 (Table 1).
Sequence in context: A301696 A301727 A038795 * A301711 A066486 A301719
KEYWORD
nonn,more
AUTHOR
R. J. Mathar, Sep 19 2012
STATUS
approved

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Last modified July 15 09:15 EDT 2024. Contains 374324 sequences. (Running on oeis4.)