FeynRules manual (development version)

phi^4 model for FeynArts

Load FeynRules

FR$Parallel = False;
$FeynRulesPath = FileNameJoin[{$UserBaseDirectory, "Applications", "FeynRules"}];
<< FeynRules`;

$$\text{ - FeynRules - }$$

$$\text{Version: }\;\text{2.3.49}\;\text{ (} \;\text{29 September 2021}\;\text{).}$$

$$\text{Authors: A. Alloul, N. Christensen, C. Degrande, C. Duhr, B. Fuks}$$

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$$\text{Please cite:}$$

$$\text{ - Comput.Phys.Commun.185:2250-2300,2014 (arXiv:1310.1921);}$$

$$\text{ - Comput.Phys.Commun.180:1614-1641,2009 (arXiv:0806.4194).}$$

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$$\text{http://feynrules.phys.ucl.ac.be}$$

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$$\text{The FeynRules palette can be opened using the command FRPalette[].}$$

Load FeynRules model

If[$FrontEnd === Null, 
   nbDir = DirectoryName[$InputFileName], 
   nbDir = NotebookDirectory[] 
  ];

frModelPath = FileNameJoin[{nbDir, "Phi4.fr"}]
LoadModel[frModelPath];

$$\text{/media/Data/Projects/VS/FeynCalc/FeynCalc/Examples/./FeynRules/Phi4/Mathematica/Phi4.fr}$$

$$\text{This model implementation was created by}$$

$$\text{Vladyslav Shtabovenko}$$

$$\text{Model Version: }0$$

$$\text{For more information, type ModelInformation[].}$$

$$\text{}$$

$$\text{ - Loading particle classes.}$$

$$\text{ - Loading parameter classes.}$$

$$\text{$\backslash $nModel }\;\text{Phi4}\;\text{ loaded.}$$

Create FeynArts model

FR$Loop = True;
SetDirectory[FileNameJoin[{$UserBaseDirectory, "Applications", "FeynCalc", "FeynArts", "Models"}]];
WriteFeynArtsOutput[LPhi4, Output -> "Phi4", CouplingRename -> False];

$$\text{ - - - FeynRules interface to FeynArts - - -}$$

$$\text{ C. Degrande C. Duhr, 2013}$$

$$\text{ Counterterms: B. Fuks, 2012}$$

$$\text{Calculating Feynman rules for }\;\text{L1}$$

$$\text{Starting Feynman rules calculation for L1.}$$

$$\text{Expanding the Lagrangian...}$$

$$\text{Collecting the different structures that enter the vertex.}$$

$$2\text{ possible non-zero vertices have been found -$>$ starting the computation: }\;\text{FeynRules$\grave{ }$FR\$FeynmanRules}\;\text{ / }2.$$

$$2\text{ vertices obtained.}$$

$$\text{mytimecheck,after LGC}$$

$$\text{Writing FeynArts model file into directory }\;\text{Phi4}$$

$$\text{Writing FeynArts generic file on }\;\text{Phi4.gen}.$$