ALOHA: Automatic Libraries Of Helicity Amplitudes for Feynman diagram computations

Details ALOHA: Automatic Libraries Of Helicity Amplitudes for Feynman diagram computations ALOHA: Automatic Libraries Of Helicity Amplitudes for Feynman diagram computations

2011-08-09

arxiv.org/abs/1108.2041v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

20 pages

Scientific paper

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.

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