A Python package for flavour physics phenomenology in the Standard model and beyond
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flavio – flavour phenomenology in the Standard model and beyond

flavio is a Python package to compute observables in flavour physics both in the Standard Model and in the presence of new physics encoded in Wilson coefficients of dimension-6 operators.

Project web site

Further information and the package documentation can be found at:


This web site is built with Jekyll and hosted on Github pages. You can check out its source (or submit pull requests) at https://github.com/flav-io/flav-io.github.io.


See http://flav-io.github.io/docs/installation.html for instructions.

Bugs and feature request

Please submit bugs and feature request using Github's issue system rather than by E-mail. Thanks!


Main author:


  • Frederik Beaujean
  • Ece Gürler
  • Jacky Kumar
  • Christoph Niehoff
  • Albert Puig
  • Stefanie Reichert
  • Peter Stangl
  • Zeren Simon Wang


flavio is released under the MIT license.


If you use flavio in a project, please cite: