- #1
touqra
- 284
- 0
Can anyone recommend a good Feynman diagram calculator ?
What are some recommended Feynman diagram calculators?
- Context: Graduate
- Thread starter touqra
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SUMMARY
This discussion focuses on recommended software tools for calculating Feynman diagrams, highlighting several key packages. Notable mentions include CalcHEP for numerical calculations of cross sections and event generation, MadGraph for both online and code-based calculations, and FeynArts/FormCalc for analytical and numerical computations. Additionally, LanHEP is suggested for deriving Feynman rules from Lagrangians. The consensus is that while software exists, manual calculations may still be preferred for simpler tasks.
PREREQUISITES- Understanding of Feynman diagrams and their applications in quantum field theory.
- Familiarity with Mathematica for potential integration with Feynman diagram calculators.
- Basic knowledge of the Standard Model to contextualize calculations.
- Experience with numerical and analytical computation methods in physics.
- Explore the capabilities of CalcHEP for cross section calculations and event generation.
- Learn how to use MadGraph for generating Feynman diagrams and performing simulations.
- Investigate FeynArts/FormCalc for both analytical and numerical approaches to Feynman diagrams.
- Study FeynRules for deriving Feynman rules from Lagrangians and integrating with other software.
Physicists, particularly theoretical physicists and phenomenologists, as well as students and researchers involved in quantum field theory and particle physics calculations.
- #2
CompuChip
Science Advisor
Homework Helper
- 4,305
- 49
You mean that gives you the expression corresponding to a Feynman diagram? Or one that generates Feynman diagrams for you?
In both cases I know of some packages floating around, for example for Mathematica... when I was first introduced to calculations with Feynman diagrams I have also tried to find such software, but frankly so far I haven't found anything which beats manual calculation.
I know that there is software that will do it though (if you want to numerically calculate two-loop corrections to some propagator in the Standard Model, anything beats manual calculation
) although I suspect it is rather complicated and highly specialized.
In both cases I know of some packages floating around, for example for Mathematica... when I was first introduced to calculations with Feynman diagrams I have also tried to find such software, but frankly so far I haven't found anything which beats manual calculation.
I know that there is software that will do it though (if you want to numerically calculate two-loop corrections to some propagator in the Standard Model, anything beats manual calculation
) although I suspect it is rather complicated and highly specialized.- #3
bomanfishwow
- 27
- 0
CalcHEP (http://theory.sinp.msu.ru/~pukhov/calchep.html) will take you from the Feynman rules to calculations of cross sections, distributions, event generation etc. However, I suggest a tame theorist / phenomenologist to prepare models for you!
- #4
K.J.Healey
- 622
- 0
For online:
MadGraph
http://madgraph.hep.uiuc.edu/
For code:
LanHEP
http://theory.sinp.msu.ru/~semenov/lanhep.html
MadGraph
http://madgraph.hep.uiuc.edu/
For code:
LanHEP
http://theory.sinp.msu.ru/~semenov/lanhep.html
- #5
BenjF
- 5
- 0
There exists a lot of codes, each of them having different strengths and weaknesses. Here are my preferred ones:
MadGraph/MadEvent: http://madgraph.phys.ucl.ac.be/ (numerical code)
FeynArts/FormCalc: http://www.feynarts.de/ (analytical or numerical code)
WHIZARD: http://whizard.event-generator.org (numerical code)
CalcHEP/CompHEP: http://theory.sinp.msu.ru/~pukhov/calchep.html (numerical code)
And if you want to derive Feynman rules from any Lagrangian or extract the corresponding model files for some of the codes above, you can use FeynRules: http://feynrules.phys.ucl.ac.be/
CheersBenj
MadGraph/MadEvent: http://madgraph.phys.ucl.ac.be/ (numerical code)
FeynArts/FormCalc: http://www.feynarts.de/ (analytical or numerical code)
WHIZARD: http://whizard.event-generator.org (numerical code)
CalcHEP/CompHEP: http://theory.sinp.msu.ru/~pukhov/calchep.html (numerical code)
And if you want to derive Feynman rules from any Lagrangian or extract the corresponding model files for some of the codes above, you can use FeynRules: http://feynrules.phys.ucl.ac.be/
CheersBenj
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