Sextet diquark model
Authors
 Johan Alwall
 Claude Duhr
 IPPP Durham
 claude.duhr@…
Description of the model
This model is an extension of the SM, including a scalar diquark with quantum numbers
SU(3)  SU(2)  U(1)Y  six1 6  1  1/3  six2 6  1  2/3  six3 6  1  4/3 
For the triplet diquark implementation, see triplet diquark model. The particle content and the vertices of the model are summarized in the following pdf file.
The implementation of the model is based on
" QCD Corrections to Scalar Diquark production at Hadron Colliders ", T. Han, I. Lewis, T. McElmurry, JHEP 1001:123,2010, arXiv:0909.2666.
Model files
 SextetDiquarks.fr: This is the main file.
 This model needs the model file of the SM implementation of FeynRules.
 Sextet.nb: This is an example Mathematica notebook that loads the model and calculates Feynman rules.
The implementation assumes generic Yukawa matrices for the couplings between the quarks and the scalar diquarks. The mixing matrices can however be constrained to be diagonal by using the following restriction file.
Matrix element generator files
Below we give tarballs containing the model files generated by FeynRules for the various matrix element generaotrs for which a FeynRules interface exists. All fermion masses are put to zero, except for the top, the bottom and the Tau lepton masses. Furthermore, all Yukaw couplings between the diquarks and the quarks are assumed diagonal. Note that, because of the unusual color structures appearing in this model, this model only works with the limited set of matrix element generators shown below.
Sextet_Diquarks_UFO.tgz  The model files in UFO format (e.g. for MadGraph 5). 
Attachments

MFV.rst
(273 bytes) 
added by claudeduhr 7 years ago.
Restriction file for diagonal diquark Yukawa couplings

Sextet.nb
(101.8 KB) 
added by claudeduhr 7 years ago.
Sample notebook

Sextet_Diquarks.pdf
(168.2 KB) 
added by claudeduhr 7 years ago.
TeX file

Sextet_Diquarks_UFO.tgz
(18.5 KB) 
added by BenjF 5 years ago.
UFO files

SextetDiquarks.fr
(7.9 KB) 
added by BenjF 5 years ago.
Model file