European Physical Journal C: Particles and Fields (Mar 2021)

May the four be with you: novel IR-subtraction methods to tackle NNLO calculations

  • W. J. Torres Bobadilla,
  • G. F. R. Sborlini,
  • P. Banerjee,
  • S. Catani,
  • A. L. Cherchiglia,
  • L. Cieri,
  • P. K. Dhani,
  • F. Driencourt-Mangin,
  • T. Engel,
  • G. Ferrera,
  • C. Gnendiger,
  • R. J. Hernández-Pinto,
  • B. Hiller,
  • G. Pelliccioli,
  • J. Pires,
  • R. Pittau,
  • M. Rocco,
  • G. Rodrigo,
  • M. Sampaio,
  • A. Signer,
  • C. Signorile-Signorile,
  • D. Stöckinger,
  • F. Tramontano,
  • Y. Ulrich

DOI
https://doi.org/10.1140/epjc/s10052-021-08996-y
Journal volume & issue
Vol. 81, no. 3
pp. 1 – 61

Abstract

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Abstract In this manuscript, we report the outcome of the topical workshop: paving the way to alternative NNLO strategies ( https://indico.ific.uv.es/e/WorkStop-ThinkStart_3.0 ), by presenting a discussion about different frameworks to perform precise higher-order computations for high-energy physics. These approaches implement novel strategies to deal with infrared and ultraviolet singularities in quantum field theories. A special emphasis is devoted to the local cancellation of these singularities, which can enhance the efficiency of computations and lead to discover novel mathematical properties in quantum field theories.