• Open Access

Double-Copy Structure of One-Loop Open-String Amplitudes

Carlos R. Mafra and Oliver Schlotterer
Phys. Rev. Lett. 121, 011601 – Published 5 July 2018

Abstract

In this Letter, we provide evidence for a new double-copy structure in one-loop amplitudes of the open superstring. Their integrands with respect to the moduli space of genus-one surfaces are cast into a form where gauge-invariant kinematic factors and certain functions of the punctures—so-called generalized elliptic integrands—enter on completely symmetric footing. In particular, replacing the generalized elliptic integrands by a second copy of kinematic factors maps one-loop open-string correlators to gravitational matrix elements of the higher-curvature operator R4.

  • Figure
  • Received 14 January 2018
  • Revised 14 March 2018

DOI:https://doi.org/10.1103/PhysRevLett.121.011601

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.

Published by the American Physical Society

Physics Subject Headings (PhySH)

Particles & Fields

Authors & Affiliations

Carlos R. Mafra1,* and Oliver Schlotterer2,†

  • 1STAG Research Centre and Mathematical Sciences, University of Southampton, Highfield, Southampton SO17 1BJ, United Kingdom
  • 2Max-Planck-Institut für Gravitationsphysik, Albert-Einstein-Institut, 14476 Potsdam, Germany and Perimeter Institute for Theoretical Physics, Waterloo, Ontario N2L 2Y5, Canada

  • *c.r.mafra@soton.ac.uk
  • olivers@aei.mpg.de

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Vol. 121, Iss. 1 — 6 July 2018

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