English

ALOHA: Automatic Libraries Of Helicity Amplitudes for Feynman diagram computations

High Energy Physics - Phenomenology 2012-08-02 v2

Abstract

We present an application that automatically writes the Helas library corresponding to the Feynman rules of any Lagrangian, renormalizable or not, in quantum field theory. The code, written in Python, takes the Universal FeynRules Output as an input and produces the complete set of routines (wave-functions and amplitudes) that are needed for the computation of Feynman diagrams at leading as well as at higher orders. The representation is language independent and outputs in Fortran, C++, Python are currently available. A few key sample applications implemented in the MadGraph5 framework are presented.

Cite

@article{arxiv.1108.2041,
  title  = {ALOHA: Automatic Libraries Of Helicity Amplitudes for Feynman diagram computations},
  author = {Priscila de Aquino and William Link and Fabio Maltoni and Olivier Mattelaer and Tim Stelzer},
  journal= {arXiv preprint arXiv:1108.2041},
  year   = {2012}
}

Comments

20 pages

R2 v1 2026-06-21T18:48:31.442Z