MadGraph5_aMC@NLO is a framework that aims at providing all the elements necessary for SM and BSM phenomenology, such as the computations of cross sections, the generation of hard events and their matching with event generators, and the use of a variety of tools relevant to event manipulation and analysis. Processes can be simulated to LO accuracy for any user-defined Lagrangian, an the NLO accuracy in the case of models that support this kind of calculations -- prominent among these are QCD and EW corrections to SM processes. Matrix elements at the tree- and one-loop-level can also be obtained.
MadGraph5_aMC@NLO is the new version of both MadGraph5 and aMC@NLO that unifies the LO and NLO lines of development of automated tools within the MadGraph family. It therefore supersedes all the MadGraph5 1.5.x versions and all the beta versions of aMC@NLO.
The standard reference for the use of the code is: J. Alwall et al, "The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations", arXiv:1405.0301 [hep-ph]. In addition to that, computations in mixed-coupling expansions and/or of NLO corrections in theories other than QCD (eg NLO EW) require the citation of: R. Frederix et al, "The automation of next-to-leading order electroweak calculations", arXiv:1804.10017 [hep-ph]. A more complete list of references can be found here: http://
Download:
The latest stable release can downloaded as a tar.gz package (see the right of this page), or through the Bazaar versioning system, using bzr branch lp:mg5amcnlo
Installation:
MadGraph5_aMC@NLO needs Python version 2.6 or 2.7 ; gfortran/gcc 4.6 or higher is required for NLO calculations/
Getting started:
Run bin/mg5_aMC and type "help" to learn how to run MadGraph5_aMC@NLO using the command interface, or run the interactive quick-start tutorial by typing "tutorial". Some third-party packages can be installed using the MG5_aMC shell command "install". LO generation can also be done directly online at: http://
Project information
- Licence:
-
Other/Open Source
(UoI-NCSA open source license: http://www.opensource.org/licenses/UoI-NCSA.php)
View full history Series and milestones
2.0 series is the current focus of development.
All code Code
- Version control system:
- Bazaar
- Programming languages:
- Python3
All questions Latest questions
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UFO model foton-neutrino
Posted 16 hours ago -
Decay withou branches
Posted on 2021-03-06 -
Generate p p > h h [QCD] in Fixed-Order model with amcfast
Posted on 2021-03-06 -
how do you automatically switch off decay channel if no phase space?
Posted on 2021-03-04 -
"ValueError : level must be >= 0" when running a diagram filter
Posted on 2021-03-04
All FAQs FAQs for MadGraph5_aMC@NLO
- How are handle small width?
- What is the connection between integration channels and diagrams in MadGraph 5?
- what is "WARNING: Failed to update dependent parameter"
- Different syntax for the same diagram leads to different cross-sections: Why?
- Can I just calculate the amplitudes for a (sub)process and check them point-by-point in phase space points (in fortran/C++/Python)
All bugs Latest bugs reported
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Bug #1918031: p a [or a a] > a a j j [QCD] leading to a crash
Reported on 2021-03-07 -
Bug #1917950: Command "install update" interrupted with error: FileExistsError : [Errno 17] File exists:
Reported on 2021-03-05 -
Bug #1917876: Unexpected fluctuations when interfacing to external models
Reported on 2021-03-05 -
Bug #1917822: KeyError : 'PYTHONPATH' when generating output
Reported on 2021-03-05 -
Bug #1917505: name 'complexconjugate' is not defined
Reported on 2021-03-02
All blueprints Latest blueprints
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overwrite default value of benchmark
Registered on 2020-04-25 -
transition to git
Registered on 2018-03-01 -
automatic detection of zero couplings
Registered on 2011-05-07
More contributors Top contributors
- Olivier Mattelaer 105007 points
- HH 3775 points
- marco zaro 3527 points
- Shubhani Jain 1889 points
- Rikkert Frederix 1851 points