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MadGolem: automating NLO calculations for New Physics

2012/09/13 by David Lopez-Val, David López-Val, Dorival Gonçalves +9
Computer Science · Physics and Astronomy · #Distributed and Parallel Computing Systems #Particle Detector Development and Performance #Particle physics theoretical and experimental studies #hep-ph

paper · pdf · doi:10.48550/arxiv.1209.2797

Prepared for the proceedings to Loops and Legs in Quantum Field Theory - 11th DESY Workshop on Elementary Particle Physics, April 15-20, 2012, Wernigerode, Germany

arxiv created 2012/09/13 · arxiv updated 2014/05/30

Abstract

With the LHC close to complete its 8 TeV run, the experimental searches have already started to probe the vast beyond-the-standard Model scenery. Providing next-to-leading order (NLO) predictions for the major new physics discovery channels is therefore a most pressing request to particle phenomenologists these days. MadGolem is a new computational tool that automates NLO calculations of generic 2->2 new physics processes in the MadGraph/Golem framework. In this contribution we concisely describe the structure and performance of the code, with particular focus on the generation of the renormalized one-loop amplitudes and the automatized subtraction of infrared and on-shell divergences. We briefly survey the many dedicated tests of all these aspects and outline some applications to LHC phenomenology.

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