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arXiv · hep-th/9710237

On the Evaluation of Compton Scattering Amplitudes in String Theory

A. Pasquinucci·M. Petrini
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Abstract

We consider the Compton amplitude for the scattering of a photon and a (massless) ``electron/positron'' at one loop (i.e. genus one) in a four-dimensional fermionic heterotic string model. Starting from the bosonization of the world-sheet fermions needed to explicitly construct the spin-fields representing the space-time fermions, we present all the steps of the computation which leads to the explicit form of the amplitude as an integral of modular forms over the moduli space.

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A. Pasquinucci, M. Petrini. 1997-10-30. On the Evaluation of Compton Scattering Amplitudes in String Theory. https://doi.org/10.1142/s0217751x98002237

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