New developments in FEYNRULES

15th International Workshop on Advanced Computing and Analysis Techniques in Physics Research

物理学;计算机科学

Alloul, Adam^1,2 ; Christensen, Neil D.^3 ; Degrande, Céline^4 ; Duhr, Claude^5,6 ; Fuks, Benjamin^1,7

Institut Pluridisciplinaire Hubert Curien, Département Recherches Subatomiques, Université de Strasbourg/CNRS-IN2P3, 23 Rue du Loess, F-67037 Strasbourg, France^1

Groupe de Recherche de Physique des Hautes Énergies (GRPHE), Université de Haute-Alsace, IUT Colmar, 34 rue du Grillenbreit, 68008 Colmar Cedex, France^2

PITTsburgh Particle Physics, Astrophysics and Cosmology Center (PITT PACC), University of Pittsburgh, Pittsburgh, PA 15260, United States^3

Department of Physics, University of Illinois at Urbana-Champaign, 1110 West green Street, Urbana, IL 61801, United States^4

Institute for Theoretical Physics, ETH Zurich, 8093 Zurich, Switzerland^5

Institute for Particle Physics Phenomenology, University of Durham, Durham, DH1 3LE, United Kingdom^6

Theory Division, Physics Department, CERN, CH-1211 Geneva 23, Switzerland^7

关键词: Diagonalizations;    Gauge symmetries;    Mathematica packages;    Model complexity;    Modeling format;    Monte Carlo Event generators;    Particle content;    Particle spectra;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/523/1/012044/pdf
DOI  :  10.1088/1742-6596/523/1/012044

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

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-1 fermions, a new module allowing for the automated diagonalization of the particle spectrum and a new set of routines dedicated to decay width calculations.