New Relations for Gauge-Theory Amplitudes with Matter

Details New Relations for Gauge-Theory Amplitudes with Matter New Relations for Gauge-Theory Amplitudes with Matter

2009-03-31

arxiv.org/abs/0903.5453v2

Nucl.Phys.B821:417-430,2009

Physics

High Energy Physics

High Energy Physics - Theory

14 pages, added content, added references

Scientific paper

10.1016/j.nuclphysb.2009.07.002

We extend a recently discovered set of relations for gauge-theory amplitudes
to non-gluonic matter. For all MHV amplitudes we find that these can be made to
hold for scalar/fermion/quark cases by inclusion of a factor derived via Ward
identities. For six- and seven-point amplitudes with non-gluonic matter we
explicitly confirm these relations for NMHV helicity configurations.

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