Automated simulations beyond the Standard Model: supersymmetry

Stefano Frixione¹,
Benjamin Fuks^2,3,
Valentin Hirschi⁴,
Kentarou Mawatari⁵,
Hua-Sheng Shao²,
Marthijn P. A. Sunder⁶ &
…
Marco Zaro⁷

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A preprint version of the article is available at arXiv.

Abstract

The MadGraph5_aMC@NLO framework aims to automate all types of leading- and next-to-leading-order-accurate simulations for any user-defined model that stems from a renormalisable Lagrangian. In this paper, we present all of the key ingredients of such models in the context of supersymmetric theories. In order to do so, we extend the FeynRules package by giving it the possibility of dealing with different renormalisation options that are relevant to supersymmetric models. We also show how to deal with the problem posed by the presence of narrow resonances, thus generalising the so-called on-shell subtraction approaches. We extensively compare our total rate results with those of both Prospino2 and Resummino, and present illustrative applications relevant to the 13 TeV LHC, both at the total-rate and differential levels. The computer programmes that we have used to obtain the predictions presented here are all publicly available.

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Supersymmetric fits after the Higgs discovery and implications for model building

Precision tools and models to narrow in on the 750 GeV diphoton resonance

Article Open access 23 September 2016

Precise Higgs mass calculations in (non-)minimal supersymmetry at both high and low scales

Article Open access 18 January 2017

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INFN, Sezione di Genova, Via Dodecaneso 33, I-16146, Genoa, Italy
Stefano Frixione
Laboratoire de Physique Théorique et Hautes Energies (LPTHE), UMR 7589, Sorbonne Université et CNRS, 4 place Jussieu, 75252, Paris Cedex 05, France
Benjamin Fuks & Hua-Sheng Shao
Institut Universitaire de France, 103 boulevard Saint-Michel, 75005, Paris, France
Benjamin Fuks
Institute for Theoretical Physics, ETH Zürich, 8093, Zürich, Switzerland
Valentin Hirschi
Department of Physics, Osaka University, Toyonaka, Osaka, 560-0043, Japan
Kentarou Mawatari
Institut für Theoretische Physik, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Straße 9, D-48149, Münster, Germany
Marthijn P. A. Sunder
Nikhef, Theory Group, Science Park 105, 1098 XG, Amsterdam, The Netherlands
Marco Zaro

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Frixione, S., Fuks, B., Hirschi, V. et al. Automated simulations beyond the Standard Model: supersymmetry. J. High Energ. Phys. 2019, 8 (2019). https://doi.org/10.1007/JHEP12(2019)008

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Received: 25 July 2019
Accepted: 07 November 2019
Published: 02 December 2019
DOI: https://doi.org/10.1007/JHEP12(2019)008

Automated simulations beyond the Standard Model: supersymmetry

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Automated simulations beyond the Standard Model: supersymmetry

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