MadGraph 5: going beyond

• Published in: The journal of high energy physics Vol. 2011; no. 6
• Main Authors: Alwall, Johan, Herquet, Michel, Maltoni, Fabio, Mattelaer, Olivier, Stelzer, Tim
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer-Verlag 01.06.2011; Springer Nature B.V
• Subjects: Algorithms; Classical and Quantum Gravitation; Computer simulation; Elementary Particles; High energy physics; Physics; Physics and Astronomy; Programming languages; Quantum Field Theories; Quantum Field Theory; Quantum Physics; Relativity Theory; String Theory; QCD Phenomenology
• ISSN: 1029-8479; 1126-6708; 1127-2236; 1029-8479
• DOI: 10.1007/JHEP06(2011)128

M ad G raph 5 is the new version of the M ad G raph matrix element generator, written in the Python programming language. It implements a number of new, efficient algorithms that provide improved performance and functionality in all aspects of the program. It features a new user interface, several new output formats including C++ process libraries for P ythia 8, and full compatibility with F eyn R ules for new physics models implementation, allowing for event generation for any model that can be written in the form of a Lagrangian. M ad G raph 5 builds on the same philosophy as the previous versions, and its design allows it to be used as a collaborative platform where theoretical, phenomenological and simulation projects can be developed and then distributed to the high-energy community. We describe the ideas and the most important developments of the code and illustrate its capabilities through a few simple phenomenological examples.