Tree and Loop Amplitudes in Open Twistor String Theory

Abstract

We compute the one-loop gluon amplitude for the open twistor string model of Berkovits, using a symmetric form of the vertex operators. We discuss the classical solutions in various topologies and instanton sectors and the canonical quantization of the world sheet Lagrangian. We derive the N-point functions for the gluon tree and one-loop amplitudes, and calculate a general one-loop expression for the current algebra.

54 pages, misprints corrected in the published version

References in corpus (2)

• Bootstrapping One-Loop QCD Amplitudes with General Helicities
• All One-loop Maximally Helicity Violating Gluonic Amplitudes in QCD

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• Efficient Tree-Amplitudes in N=4: Automatic BCFW Recursion in Mathematica
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• One-loop N = 4 super Yang-Mills scattering amplitudes in d dimensions, relation to open strings and polygonal Wilson loops
• Twistor Strings with Flavour
• Noncommutative Solitons in a Supersymmetric Chiral Model in 2+1 Dimensions
• On Closed Twistor String Theory
• One-Loop N = 4 Super Yang-Mills Scattering Amplitudes to All Orders in the Dimensional Regularization Parameter
• Twistors, strings and supersymmetric gauge theories