A Note on Loop Amplitudes in QED
نویسندگان
چکیده
We consider the two-loop four-point amplitude in N = 2 super QED, and show that there exists an approximate recursive structure similar to that captured by the ABDK/BDS ansatz for MHV amplitudes in N = 4 super Yang-Mills. Furthermore, we present a simple relation between the box coefficients of one-loop photon MHV amplitudes in (super) QED, and sums of box coefficients of one-loop MHV amplitudes in (super) Yang-Mills. {a.brandhuber, g.travaglini, m.vincon}@qmul.ac.uk
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