The Computation of loop amplitudes in gauge theories

We present a detailed derivation of a new and efficient technique based on the technology of four-dimensional heterotic strings, for computing one-loop amplitudes in gauge theories, along with expressions for the one-loop dimensionally regularized helicity amplitudes for the process with four external gluons. We also give a set of computational rules pre-supposing ignorance of string theory.

gauge field theory: SU(N)
scattering amplitude: higher-order
higher-order: scattering amplitude
string model: heterotic
helicity: amplitude analysis
regularization: dimensional
optical theorem
infrared problem
bibliography

References(54)

Figures(0)

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