The GAMBIT Universal Model Machine: from Lagrangians to likelihoods

The European Physical Journal C, vol. 81

Abstract

Abstract We introduce the Universal Model Machine (), a tool for automatically generating code for the global fitting software framework , based on Lagrangian-level inputs. accepts models written symbolically in and formats, and can use either tool along with and to generate model, collider, dark matter, decay and spectrum code, as well as interfaces to corresponding versions of , , and (C "Image missing"). In this paper we describe the features, methods, usage, pathways, assumptions and current limitations of . We also give a fully worked example, consisting of the addition of a Majorana fermion simplified dark matter model with a scalar mediator to via , and carry out a corresponding fit.

Authors 10

1. Sanjay Bloor

   The University of Queensland · Imperial College London

   Affiliation as printed

   Blackett Laboratory, Department of Physics, Imperial College London, Prince Consort Road, London, SW7 2AZ, UK

   School of Mathematics and Physics, The University of Queensland, St. Lucia, Brisbane, QLD, 4072, Australia

2. Tomás E. Gonzalo corresponding Aachen Institute for Theoretical Particle Physics and Cosmology

   Monash University · RWTH Aachen University

   Affiliation as printed

   Institute for Theoretical Particle Physics and Cosmology (TTK), RWTH Aachen University, 52056, Aachen, Germany

   School of Physics and Astronomy, Monash University, Melbourne, VIC, 3800, Australia

3. Pat Scott

   The University of Queensland · Imperial College London

   Affiliation as printed

   Blackett Laboratory, Department of Physics, Imperial College London, Prince Consort Road, London, SW7 2AZ, UK

   School of Mathematics and Physics, The University of Queensland, St. Lucia, Brisbane, QLD, 4072, Australia

4. Christopher Chang

   The University of Queensland

   Affiliation as printed

   School of Mathematics and Physics, The University of Queensland, St. Lucia, Brisbane, QLD, 4072, Australia

5. Are Raklev

   University of Oslo

   Affiliation as printed

   Department of Physics, University of Oslo, 0316, Oslo, Norway

6. José Eliel Camargo-Molina

   Uppsala University · Imperial College London

   Affiliation as printed

   Blackett Laboratory, Department of Physics, Imperial College London, Prince Consort Road, London, SW7 2AZ, UK

   Department of Physics and Astronomy, Uppsala University, Box 516, 751 20, Uppsala, Sweden

7. Anders Kvellestad

   University of Oslo · Imperial College London

   Affiliation as printed

   Blackett Laboratory, Department of Physics, Imperial College London, Prince Consort Road, London, SW7 2AZ, UK

   Department of Physics, University of Oslo, 0316, Oslo, Norway

8. Janina J. Renk

   The University of Queensland · AlbaNova · Imperial College London

   Affiliation as printed

   Blackett Laboratory, Department of Physics, Imperial College London, Prince Consort Road, London, SW7 2AZ, UK

   Oskar Klein Centre for Cosmoparticle Physics, AlbaNova University Centre, 10691, Stockholm, Sweden

   School of Mathematics and Physics, The University of Queensland, St. Lucia, Brisbane, QLD, 4072, Australia

9. Peter Athron

   Nanjing Normal University · Monash University

   Affiliation as printed

   Department of Physics and Institute of Theoretical Physics, Nanjing Normal University, Nanjing, 210023, Jiangsu, China

   School of Physics and Astronomy, Monash University, Melbourne, VIC, 3800, Australia

10. Csaba Balázs

    Monash University

    Affiliation as printed

    School of Physics and Astronomy, Monash University, Melbourne, VIC, 3800, Australia