OneLOop: For the evaluation of one-loop scalar functions

@article{Hameren2011OneLOopFT,
  title={OneLOop: For the evaluation of one-loop scalar functions},
  author={Andreas van Hameren},
  journal={Comput. Phys. Commun.},
  year={2011},
  volume={182},
  pages={2427-2438}
}
  • A. Hameren
  • Published 27 July 2010
  • Computer Science
  • Comput. Phys. Commun.

Figures from this paper

Tools for NLO automation: Extension of the golem95C integral library

Scalar one-loop four-point Feynman integrals with complex internal masses

Based on the method in Refs. [D. Kreimer, Z. Phys. C 54 (1992) 667 and Int. J. Mod. Phys. A 8 (1993) 1797] , we present analytic results for scalar one-loop four-point Feynman integrals with complex

Collier: A fortran-based complex one-loop library in extended regularizations

Two-loop tensor integral coefficients in OpenLoops

TLDR
A new and fully general algorithm for the automated construction of the integrands of two-loop scattering amplitudes through a generalisation of the open-loops method to two loops that is implemented in the OpenLoops framework in a fully automated way.

Towards two-loop automation in OpenLoops

TLDR
A completely generic algorithm is described for the e-cient and numerically stable construction of these tensor coefficients and is fully implemented in the OpenLoops framework for QED and QCD corrections to the Standard Model.

OpenLoops 2

TLDR
This new version of OpenLoops, an automated generator of tree and one-loop scattering amplitudes based on the open-loop recursion, is presented, equipped with an automated system that avoids Gram-determinant instabilities through analytic methods in combination with a new hybrid-precision approach.
...

References

SHOWING 1-10 OF 49 REFERENCES

An algebraic/numerical formalism for one-loop multi-leg amplitudes

We present a formalism for the calculation of multi-particle one-loop amplitudes, valid for an arbitrary number N of external legs, and for massive as well as massless particles. A new method for the

Scalar one-loop integrals for QCD

We construct a basis set of infra-red and/or collinearly divergent scalar one-loop integrals and give analytic formulas, for tadpole, bubble, triangle and box integrals, regulating the divergences

Numerical integration of one-loop Feynman diagrams for N-photon amplitudes

In the calculation of cross sections for infrared-safe observables in high energy collisions at nextto-leading order, one approach is to perform all of the integrations, including the virtual loop

Assault on the NLO wishlist: pp→tt̄bb̄

We present the results of a next-to-leading order calculation of QCD corrections to the production of an on-shell top-anti-top quark pair in association with two flavored b-jets. Besides studying the

Cuba - a library for multidimensional numerical integration

  • T. Hahn
  • Computer Science
    Comput. Phys. Commun.
  • 2005

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