= Working Group 3 =

  * '''Topic 1''' : [wiki:SurveyModels Survey] of the exsisting/missing models.


 * '''Topic 2''' : Application of the Les Houches validation scheme.
   
We would like to perform a 4 star comparison between FR and LH for the following models:

      * I. '''MSSM full validation'''.   
      * ''Description'': validation of cMSSM with LH+CH, FR+WO and the WO,SH  stock versions.    
      * ''Names'': __Benj__, Sasha, Steffen, Christian.
      * ''Status'': Several processes have discrepancies. Sasha is looking into the CH files. Here is an [/attachment/wiki/WorkingGroup3/ww600new.jpg example]
      * ''To-do'': get final agreeement.

      * II. '''Randall-Sundrum'''.   
      * ''Description'': validation of RS between MG-stock, FR+CH, FR+WO.   
      * ''Names'': __Neil__, Sasha, Priscila, Christian.
      * ''Status'': All model files available. Next step is comparison with MG-stock implementation of RS by Priscila and Qiang in v4. Finally, validation with FR+MG5 will be done.
      * ''To-do'': get final agreeement.


      * III. '''Walking Technicolor'''.   
      * ''Description'': validation of WT FR vs LH versions with CalcHEP and MG and more...   
      * ''Names'': __Sasha__,  Fabio, Claude.
      * ''Status'': To be started. FR version to be validated with the LH version in CH. Paper SB, and Francesco Sannino (arXiv:0809.0793 [hep-ph]). 
      * ''To-do'': get final agreeement.

      * IV. '''Little Higgs with T-parity'''.   
      * ''Description'': validation of LHwT FR vs LH versions with CalcHEP and MG and more..   
      * ''Names'': __Fabio__, Sasha, Celine, Claude, Christian.
      * ''Status'': To be started. The LanHEP sources are available by Sasha. Here is the CalcHEP implementation: [http://hep.pa.msu.edu/LHT/lht.zip] An implementation is also available in WHIZARD.
      * ''To-do'': get final agreeement.

      * V. '''Lepto-Quarks'''.   
      * ''Description'': validation of LHwT FR vs LH versions with CalcHEP and MG and more..   
      * ''Names'': __Fabio__, Sasha, Celine, Claude, Christian.
      * ''Status'': To be started. Lepto-Quarks : FR version to be validated with the LH version in CH. hep-ph/0502067.To validate this model we need a FR implementation of the Lagrangian in the paper above and its export into, let's say, MG5.  '''Complete''' version of the CH implementation(including SU(3)xSU(2)xU(1)) is ready and will be available. [attachment:LeptoQuarks.tgz].
      * ''To-do'': get final agreeement.


  * '''Topic 3''' : Structure of the FeynRules web-based [wiki:DatabaseDiscussions Database]