New developments in FeynRules

Abstract

The program FeynRules is a Mathematica package developed to facilitate the implementation of new physics theories into high-energy physics tools. Starting from a minimal set of information such as the model gauge symmetries, its particle content, parameters and Lagrangian, FeynRules provides all necessary routines to extract automatically from the Lagrangian (that can also be computed semi-automatically for supersymmetric theories) the associated Feynman rules. These can be further exported to several Monte Carlo event generators through dedicated interfaces, as well as translated into a Python library, under the so-called UFO model format, agnostic of the model complexity, especially in terms of Lorentz and/or color structures appearing in the vertices or of number of external legs. In this work, we briefly report on the most recent new features that have been added to FeynRules, including full support for spin-3/2 fermions, a new module allowing for the automated diagonalization of the particle spectrum and a new set of routines dedicated to decay width calculations.

6 pages. Contribution to the 15th International Workshop on advanced computing and analysis techniques (ACAT 2013), 16-21 May, Beijing, China

References in corpus (8)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Event generation with SHERPA 1.1
• UFO - The Universal FeynRules Output
• FeynRules - Feynman rules made easy
• ALOHA: Automatic Libraries Of Helicity Amplitudes for Feynman diagram computations
• Beyond the Minimal Supersymmetric Standard Model: from theory to phenomenology
• Automated mass spectrum generation for new physics

Cited by in corpus (8)

• Higgs coupling measurements at the LHC
• Searching for axion-like particles at future electron-positron colliders
• Higgs characterisation in the presence of theoretical uncertainties and invisible decays
• Majorana neutrino signals at Belle-II and ILC
• Search for anomalous couplings via single top quark production in association with a photon at LHC
• A UV Complete Compositeness Scenario: LHC Constraints Meet The Lattice
• Prospects for detecting axion-like particles via the decay $Z\to af\bar{f}$ at future $Z$ factories
• The signatures of doubly charged leptons in future linear colliders