1997/10/30 by A. Pasquinucci, ANDREA PASQUINUCCI, M. Petrini +1
Physics and Astronomy · #Black Holes and Theoretical Physics #Quantum Chromodynamics and Particle Interactions #Quantum and Classical Electrodynamics #hep-th
paper · pdf · doi:10.1142/s0217751x98002237
published as Int.J.Mod.Phys. A13 (1998) 4717-4758 · 41 pages, Latex
arxiv created 1997/10/30 · openalex publication_date 1998/10/30 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We consider the Compton amplitude for the scattering of a photon and an (massless) "electron/positron" at one loop (i.e. genus 1) 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.