Journal of High Energy Physics (May 2023)

An infinite family of elliptic ladder integrals

  • Andrew McLeod,
  • Roger Morales,
  • Matt von Hippel,
  • Matthias Wilhelm,
  • Chi Zhang (张驰)

DOI
https://doi.org/10.1007/JHEP05(2023)236
Journal volume & issue
Vol. 2023, no. 5
pp. 1 – 25

Abstract

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Abstract We identify two families of ten-point Feynman diagrams that generalize the elliptic double box, and show that they can be expressed in terms of the same class of elliptic multiple polylogarithms to all loop orders. Interestingly, one of these families can also be written as a dlog form. For both families of diagrams, we provide new 2ℓ-fold integral representations that are linearly reducible in all but one variable and that make the above properties manifest. We illustrate the simplicity of this integral representation by directly integrating the three-loop representative of both families of diagrams. These families also satisfy a pair of second-order differential equations, making them ideal examples on which to develop bootstrap techniques involving elliptic symbol letters at high loop orders.

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