The GAMBIT Universal Model Machine: from Lagrangians to Likelihoods
Abstract
We introduce the GAMBIT Universal Model Machine (GUM), a tool for automatically generating code for the global fitting software framework GAMBIT, based on Lagrangian-level inputs. GUM accepts models written symbolically in FeynRules and SARAH formats, and can use either tool along with MadGraph and CalcHEP to generate GAMBIT model, collider, dark matter, decay and spectrum code, as well as GAMBIT interfaces to corresponding versions of SPheno, micrOMEGAs, Pythia and Vevacious (C++). In this paper we describe the features, methods, usage, pathways, assumptions and current limitations of GUM. We also give a fully worked example, consisting of the addition of a Majorana fermion simplified dark matter model with a scalar mediator to GAMBIT via GUM, and carry out a corresponding fit.
Keywords
Cite
@article{arxiv.2107.00030,
title = {The GAMBIT Universal Model Machine: from Lagrangians to Likelihoods},
author = {Sanjay Bloor and Tomás E. Gonzalo and Pat Scott and Christopher Chang and Are Raklev and José Eliel Camargo-Molina and Anders Kvellestad and Janina J. Renk and Peter Athron and Csaba Balázs},
journal= {arXiv preprint arXiv:2107.00030},
year = {2022}
}
Comments
32 pages, 6 figures, 3 tables