SM + Scalars
Author
- Claude Duhr
- IPPP Durham
- claude.duhr@…
Description of the model
This model is an extension of the SM, where a new scalar sector is added. This new sector consists in an O(n) symmetric model that only interacts with itself and with the SM Higgs boson.
The implementation of the model is based on
" The minimal non-minimal Standard Model ", J.J. van der Bij, Phys.Lett.B636:56-59,2006, hep-ph/0603082.
Model files
- SMScalars.fr: This is the main file.
- This model needs the model file of the SM implementation of FeynRules. Note that the width of the Higgs boson in the SM model file needs to be changed.
- SMScalars.nb : This is an example Mathematica notebook that loads the model and calculates Feynman rules.
The Feynman rules and the particle content are summarized in the following pdf file.
Instructions
The model is loaded by merging the model files SM.fr
and SMScalars.fr
.
The implmentation allows for the use of the Feynman gauge in the SM.The switch between the two gauge is achieved via FeynmanGauge = True/False
(see StandardModel).
The number of new scalars in the O(n) symmetric sector can be changed. This can be achieved by changing the variable Nf
inside the model file before loading the model. The default value is Nf = 4
.
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. All files are in unitary gauge.
SM_Plus_Scalars-CH.tgz | The model files for CalcHep. |
SM_Plus_Scalars_FA.tgz | The model files for FeynArts. |
SM_Plus_Scalars_MG.tgz | The model files for MadGraph 4. |
SM_Plus_Scalars_SH.tgz | The model files for Sherpa. |
SM_Plus_Scalars_UFO.tgz | The model files in UFO format (e.g. for MadGraph 5). |
Attachments (9)
-
SMScalar.tex
(6.0 KB
) - added by 15 years ago.
TeX file containing the model and the Feynman rules
-
SMScalars.fr
(2.8 KB
) - added by 14 years ago.
Model file
-
SMScalars.nb
(4.8 KB
) - added by 14 years ago.
Sample notebook
-
SM_Plus_Scalars_FA.tgz
(4.3 KB
) - added by 14 years ago.
FA files
-
SM_Plus_Scalars_MG.tgz
(9.7 KB
) - added by 14 years ago.
MG4 files
-
SM_Plus_Scalars_SH.tgz
(3.2 KB
) - added by 14 years ago.
SH files
-
SM_Plus_Scalars_UFO.tgz
(9.4 KB
) - added by 14 years ago.
UFO files
-
SM_Plus_Scalars-CH.tgz
(4.7 KB
) - added by 14 years ago.
CH files
-
SM_Plus_Scalars.pdf
(136.5 KB
) - added by 14 years ago.
TeX file
Download all attachments as: .zip