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Computing decay rates for new physics theories with FeynRules and MadGraph 5_aMC@NLO

Alwall, Johan and Duhr, Claude and Fuks, Benjamin and Mattelaer, Olivier and Öztürk, Deniz Gizem and Shen, Chia-Hsien (2015) Computing decay rates for new physics theories with FeynRules and MadGraph 5_aMC@NLO. Computer Physics Communications, 197 . pp. 312-323. ISSN 0010-4655.

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We present new features of the FeynRules and MadGraph 5_aMC@NLO programs for the automatic computation of decay widths that consistently include channels of arbitrary final-state multiplicity. The implementations are generic enough so that they can be used in the framework of any quantum field theory, possibly including higher-dimensional operators. We extend at the same time the conventions of the Universal FeynRules Output (or UFO) format to include decay tables and information on the total widths. We finally provide a set of representative examples of the usage of the new functions of the different codes in the framework of the Standard Model, the Higgs Effective Field Theory, the Strongly Interacting Light Higgs model and the Minimal Supersymmetric Standard Model and compare the results to available literature and programs for validation purposes.

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Additional Information:© 2015 Elsevier B.V. Received 20 January 2015; Received in revised form 18 August 2015; Accepted 21 August 2015; Available online 10 September 2015. We want to thank C. Degrande and F. Maltoni for useful discussions on this project and D. Goncalves Netto and K. Mawatari for their constructive bug reports. OM wants to thank the IPPP center for its hospitality during the time of this project. BF was supported in part by the French ANR 12 JS05 002 01 BATS@LHC and by the Theory-LHC-France initiative of the CNRS/IN2P3. CHS is supported by the DOE under grant number DE-SC0010255. DGO is supported by Theoretische Forschungen auf dem Gebiet der Elementarteilchen (SNF). OM is ‘Chercheur scientifique logistique postdoctoral F.R.S.-FNRS’, Belgium. This work was partly supported by the Research Executive Agency (REA) of the European Union under the Grant Agreement number PITN-GA-2010-264564 (LHCPhenoNet), by MCnetITN FP7 Marie Curie Initial Training Network PITN-GA-2012-315877, by the IISN ‘‘MadGraph’’ convention 4.4511.10, by the IISN ‘‘Fundamental interactions’’ convention 4.4517.08, and in part by the Belgian Federal Science Policy Office through the Interuniversity Attraction Pole P7/37.
Funding AgencyGrant Number
Agence Nationale pour la Recherche (ANR)12 JS05 002 01 BATS@LHC
Centre National de la Recherche Scientifique (CNRS)UNSPECIFIED
Department of Energy (DOE)DE-SC0010255
Theoretische Forschungen auf dem Gebiet der Elementarteilchen (SNF)UNSPECIFIED
Fonds de la Recherche Scientifique (FNRS)UNSPECIFIED
European Union Research Executive Agency (REA)PITN-GA-2010-264564
MCnetITN FP7 Marie CuriePITN-GA-2012-315877
Institut Interuniversitaire des Sciences Nucléaires (IISN)4.4511.10
Institut Interuniversitaire des Sciences Nucléaires (IISN)4.4517.08
Belgian Federal Science Policy Office (BELSPO)Pole P7/37
Institut national de physique nucléaire et de physique des particules (IN2P3)UNSPECIFIED
Subject Keywords:Model building
Record Number:CaltechAUTHORS:20151106-082017284
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Official Citation:Johan Alwall, Claude Duhr, Benjamin Fuks, Olivier Mattelaer, Deniz Gizem Öztürk, Chia-Hsien Shen, Computing decay rates for new physics theories with FeynRules and MadGraph 5_aMC@NLO, Computer Physics Communications, Volume 197, December 2015, Pages 312-323, ISSN 0010-4655, (
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:61929
Deposited By: Tony Diaz
Deposited On:06 Nov 2015 19:40
Last Modified:03 Oct 2019 09:13

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