Working Group 3

• Topic 1 : 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:

• First thing is to get agreement between the LH SUSY implementation in CH and all the others as in the big FR paper (Sasha for LH/CH and Steffen for Sherpa).

• Randall Sundrum (started at the workshop) : FR and LH implementations will be validated in CalcHEP (3 star) and in WHIZARD (4 star): Priscila, Neil, Sasha, Christian. 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.

• Walking Technicolor : FR version to be validated with the LH version in CH. Paper SB, and Francesco Sannino (​arXiv:0809.0793 [hep-ph]).

• Little Higgs with T-parity. 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.

• 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. LeptoQuarks.tgz​

• Topic 3 : Structure of the FeynRules web-based Database