The CalcHep/CompHEP interface

​CalcHep and ​CompHEP are packages for calculation of Feynman diagrams, integration over multi-particle phase space and generating events.

Authors

• Neil Christensen
• Claude Duhr

Generating a CalcHep/CompHEP model file with FeynRules

Instructions for implementing a ​CalcHep/​CompHEP model in FeynRules can be found in the manual which can be found at the FeynRules website.

Limitations

Some limitations of ​CalcHep/​CompHEP are:

• Models with new color octets are generally a challenge to implement in ​CalcHep/​CompHEP. This is due to the fact that the color structure of vertices are left implicit. This is sufficient for the SM as well as many extensions, but not in all. Such a model may be implemented using auxilliary fields. If you are interested in such a model, please consider the following references:
  • The ​CalcHep/​CompHEP user manual.
  • ​JHEP 0509:005,2005
  • ​Minimal Universal Extra Dimensions implementation in ​CalcHep.
  • others?
• Any limitation of ​CalcHep/​CompHEP is also a limitation of this interface.

Citation

Thank you for using our interface. If you publish any results using it, please cite:

• ​arXiv:0906.2474