ALOHA: Automatic Libraries Of Helicity Amplitudes for Feynman Diagram Computations

Aug, 2011
20 pages
Published in:
  • Comput.Phys.Commun. 183 (2012) 2254-2263
e-Print:
Report number:
  • CP3-11-26

Citations per year

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Abstract: (Elsevier)
We present an application that automatically writes the Helas  (HELicity Amplitude Subroutines) library corresponding to the Feynman rules of any quantum field theory Lagrangian. The code is written in Python  and takes the Universal FeynRules Output ( Ufo ) as an input. From this input it 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 currently it can output routines in Fortran , C++ , and Python . A few sample applications implemented in the MadGraph  5 framework are presented.
Note:
  • 20 pages
  • Phenomenological and Empirical Models and Theories
  • Helicity Routine
  • Matrix Element
  • BSM theories
  • Feynman graph
  • particle: wave function
  • Monte Carlo
  • computer
  • Lagrangian formalism
  • minimal supersymmetric standard model