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A Python package for the running and matching of Wilson coefficients above and below the electroweak scale
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wilson – running and matching beyond the Standard Model

wilson is a Python package for the running and matching of Wilson coefficients of higher-dimensional operators beyond the Standard Model of particle physics. It implements the one-loop running of all dimension-6 operators in the Standard Model Effective Theory (SMEFT), complete tree-level matching onto the weak effective theory (WET) at the electroweak scale, and complete one-loop running of all dimension-6 WET operators in QCD and QED. It uses the Wilson coefficient exchange format (WCxf) for representing Wilson coefficient values and can be easily interfaced with all codes supporting this standard.

Installation

The package requires Python version 3.5 or above. It can be installed with

python3 -m pip install wilson

Documentation

A brief user manual can be found in the paper cited below. More information can be found on the project web site.

Citation

"Wilson: a Python package for the running and matching of Wilson coefficients above and below the electroweak scale"

J. Aebischer, J. Kumar and D. M. Straub

arXiv:1804.05033 [hep-ph]

Related work

Bugs and feature requests

Please submit bugs and feature requests using Github's issue system.

Contributors

In alphabetical order:

  • Jason Aebischer
  • Danny van Dyk
  • Jacky Kumar
  • Xuanyou Pan
  • Matthias Schöffel
  • Peter Stangl
  • David M. Straub
  • Jean-Loup Tastet

License

wilson is released under the MIT license.

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