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Journal Article

The Structure of n-Point One-Loop Open Superstring Amplitudes

MPS-Authors
http://pubman.mpdl.mpg.de/cone/persons/resource/persons20711

Mafra,  Carlos R.
Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons49172

Schlotterer,  Oliver
Quantum Gravity and Unified Theories, AEI Golm, MPI for Gravitational Physics, Max Planck Society;

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Fulltext (public)

1203.6215
(Preprint), 868KB

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There is no public supplementary material available
Citation

Mafra, C. R., & Schlotterer, O. (2014). The Structure of n-Point One-Loop Open Superstring Amplitudes. Journal of High Energy Physics, 2014(08): 099. doi:10.1007/JHEP08(2014)099.


Cite as: http://hdl.handle.net/11858/00-001M-0000-000F-8364-E
Abstract
In this article we present the worldsheet integrand for one-loop amplitudes in maximally supersymmetric superstring theory involving any number n of massless open string states. The polarization dependence is organized into the same BRST invariant kinematic combinations which also govern the leading string correction to tree level amplitudes. The dimensions of the bases for both the kinematics and the associated worldsheet integrals is found to be the unsigned Stirling number S_3^{n-1} of first kind. We explain why the same combinatorial structures govern on the one hand finite one-loop amplitudes of equal helicity states in pure Yang Mills theory and on the other hand the color tensors at quadratic alpha prime order of the color dressed tree amplitude.