CutTools

CutTools: a program implementing the OPP reduction method to compute one-loop amplitudes. We present a program that implements the OPP reduction method to extract the coefficients of the one-loop scalar integrals from a user defined (sub)-amplitude or Feynman Diagram, as well as the rational terms coming from the 4-dimensional part of the numerator. The rational pieces coming from the epsilon-dimensional part of the numerator are treated as an external input, and can be computed with the help of dedicated tree-level like Feynman rules. Possible numerical instabilities are dealt with the help of arbitrary precision routines, that activate only when needed.


References in zbMATH (referenced in 66 articles , 1 standard article )

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  1. Frellesvig, Hjalte; Papadopoulos, Costas G.: Cuts of Feynman integrals in Baikov representation (2017)
  2. Alessandro Georgoudis, Kasper J. Larsen, Yang Zhang: Azurite: An algebraic geometry based package for finding bases of loop integrals (2016) arXiv
  3. Hahn, Thomas: Computer algebra in high-energy physics (invited talk) (2016)
  4. Bailey, David H.; Borwein, Jonathan M.: High-precision arithmetic in mathematical physics (2015)
  5. Bloch, Spencer; Vanhove, Pierre: The elliptic dilogarithm for the sunset graph (2015)
  6. Degrande, Celine: Automatic evaluation of UV and $R_2$ terms for beyond the standard model Lagrangians: a proof-of-principle (2015)
  7. Guillet, J.Ph.; Heinrich, G.; von Soden-Fraunhofen, J.F.: Tools for NLO automation: Extension of the golem95C integral library (2014)
  8. Hespel, Beno^ıt; López-Val, David; Vryonidou, Eleni: Higgs pair production via gluon fusion in the two-Higgs-doublet model (2014)
  9. Peraro, Tiziano: Ninja: automated integrand reduction via Laurent expansion for one-loop amplitudes (2014)
  10. Donati, Alice M.; Pittau, Roberto: Gauge invariance at work in FDR: $H\to \gamma\gamma$ (2013)
  11. Feng, Bo; Huang, Rijun: The classification of two-loop integrand basis in pure four-dimension (2013)
  12. Feng, Bo; Wang, Honghui: Analytic structure of one-loop coefficients (2013)
  13. Huang, Rijun; Zhang, Yang: On genera of curves from high-loop generalized unitarity cuts (2013)
  14. Mastrolia, Pierpaolo; Mirabella, Edoardo; Ossola, Giovanni; Peraro, Tiziano: Multiloop integrand reduction for dimensionally regulated amplitudes (2013)
  15. Søgaard, Mads: Global residues and two-loop hepta-cuts (2013)
  16. Søgaard, Mads; Zhang, Yang: Multivariate residues and maximal unitarity (2013)
  17. Badger, Simon; Frellesvig, Hjalte; Zhang, Yang: Hepta-cuts of two-loop scattering amplitudes (2012)
  18. Bailey, D.H.; Barrio, R.; Borwein, J.M.: High-precision computation: mathematical physics and dynamics (2012)
  19. Britto, Ruth; Mirabella, Edoardo: External leg corrections in the unitarity method (2012)
  20. Ita, Harald; Ozeren, Kemal: Colour decompositions of multi-quark one-loop QCD amplitudes (2012)

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