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arXiv · 0905.4379

Dual conformal symmetry of 1-loop NMHV amplitudes in N=4 SYM theory

Henriette Elvang·Daniel Z. Freedman·Michael Kiermaier
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Abstract

We prove that 1-loop n-point NMHV superamplitudes in N=4 SYM theory are dual conformal covariant for all numbers n of external particles (after regularization and subtraction of IR divergences). This property was previously established for n < 10 in arXiv:0808.0491. We derive an explicit representation of these superamplitudes in terms of dual conformal cross-ratios. We also show that all the 1-loop `box coefficients' obtained from maximal cuts of N^kMHV n-point functions are covariant under dual conformal transformations.

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Henriette Elvang, Daniel Z. Freedman, Michael Kiermaier. 2009-05-27. Dual conformal symmetry of 1-loop NMHV amplitudes in N=4 SYM theory. https://doi.org/10.1007/jhep03(2010)075

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