Model : Simplified SUSY-inspired model for di-Higgs studies

https://hepmdb.soton.ac.uk/hepmdb:0223.0337

Authors

Luca Panizzi

Added By

Luca Panizzi

References

S. Moretti, L. Panizzi, J. Sjölin and H. Waltari, "Deconstructing squark contributions to di-Higgs production at the LHC", arXiv:2302.03401 [hep-ph]

Abstract

The model contains 4 coloured scalars in the fundamental of SU(3), interacting only with gluons and with the SM Higgs boson. Furthermore, it includes two parameters to modify the tth Yukawa and the hhh trilinear couplings of the SM. All new parameters are free for model-independency. It can be used to study squark-induced new physics contribution in Higgs production at the LHC.

Information

Care must be taken when compiling the model via the Mathematica notebook to obtain the UFO suitable for one-loop simulations. The counterterms associated to the modified SM couplings are not appropriately written in CT_couplings.py. Modifications by hand have to be implemented to appropriately take into account the correct coupling orders. The UFO model provided already contains these modifications. If this is not done, results depending on these couplings are sizably affected.

Tools

MadGraph [model]
FeynRules [source]

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