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Non-Supersymmetric Loop Amplitudes and MHV Vertices
James Bedford, Andreas Brandhuber, Bill Spence +1
We show how the MHV diagram description of Yang-Mills theories can be used to study non-supersymmetric loop amplitudes. In particular, we derive a compact expression for the cut-co…
A Twistor Approach to One-Loop Amplitudes in N=1 Supersymmetric Yang-Mills Theory
James Bedford, Andreas Brandhuber, Bill Spence +1
We extend the twistor string theory inspired formalism introduced in hep-th/0407214 for calculating loop amplitudes in N=4 super Yang-Mills theory to the case of N=1 (and N=2) supe…
One-Loop Gauge Theory Amplitudes in N=4 Super Yang-Mills from MHV Vertices
Andreas Brandhuber, Bill Spence, Gabriele Travaglini
We propose a new, twistor string theory inspired formalism to calculate loop amplitudes in N=4 super Yang-Mills theory. In this approach, maximal helicity violating (MHV) tree ampl…
Fermion BMN operators, the dilatation operator of N=4 SYM, and pp-wave string interactions
George Georgiou, Gabriele Travaglini
The goal of this paper is to study the BMN correspondence in the fermionic sector. On the field theory side, we compute matrix elements of the dilatation operator in N=4 Super Yang…