== The Standard Model ==
=== Authors ===
   * Claude Duhr 
      * IPPP Durham
      * claude.duhr@durham.ac.uk
   * Neil Christensen 
      * Michigan State University 
      * neil@pa.msu.edu 

=== Model Files ===
   * [http://europa.fyma.ucl.ac.be/~duhr/twiki/pub/Main/StandardModel/SM.fr SM.fr]: This is the main file. 

=== Model Restrictions ===
   * [http://europa.fyma.ucl.ac.be/~duhr/twiki/pub/Main/StandardModel/Massless.rst Massless.rst]: Only the top, bottom and charm quarks, and the tau lepton are massive. 
   * [http://europa.fyma.ucl.ac.be/~duhr/twiki/pub/Main/StandardModel/DiagonalCKM.rst DiagonalCKM.rst]: The CKM maktrix is diagonal. 
   * [http://europa.fyma.ucl.ac.be/~duhr/twiki/pub/Main/StandardModel/Cabibbo.rst Cabibbo.rst]: 3rd generation mixing is off. 
=== Instructions ===

The Standard Model (SM) is implemented in both Feynman and unitary gauge. A switch ' {{{FeynmanGauge}}} ' has been created. To switch between the two simply set {{{FeynmanGauge }}} True/False= inside your mathematica notebook after loading the model but before doing any calculations with it (finding vertices for example.) {{{FeynmanGauge}}} is set to {{{False}}} by default.
=== Examples ===
   * [http://europa.fyma.ucl.ac.be/~duhr/twiki/pub/Main/StandardModel/SM.nb SM.nb]: This is an example Mathematica® notebook that loads SM.fr and calculates Feynman rules. 

=== Interfaces ===

This model implementation is known to work with the following interfaces:
   * [wiki:FeynArtsInterface FeynArts Interface] 
   * [wiki:MadGraphInterface MadGraph Interface] 
   * [wiki:CalcHEPInterface CalcHEP/CompHEP] 
   * [wiki:SherpaInterface Sherpa] 

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