Software is an important part of particle physics phenomenology. In my opinion, as much of this software as possible should be open source because
- it avoids duplication of effort (a.k.a. reinventing the wheel),
- it allows scrutiny of implementations (a.k.a. peer review),
- it facilitates collaboration.
Below is a list of open source projects related to HEP that I initiated or contribute to.
flavio
A Python package for the phenomenology of flavour physics and other precision tests in the Standard model and beyond, containing a library of observables, experimental measurements, statistical and visualization routines
smelli
A Python package providing a global likelihood for the Standard Model Effective Field Theory
https://github.com/smelli/smelli
wilson
A Python package for the running and matching of Wilson coefficients above and below the electroweak scale
WCxf
An exchange format for Wilson coefficients beyond the Standard Model
CKMutil
A Python package with useful functions for dealing with quark and lepton mixing matrices
https://github.com/DavidMStraub/ckmutil
pyLHA
Python package to convert data files in SLHA and similar formats to python objects, JSON, or YAML
https://github.com/DavidMStraub/pylha
rundec-python
Python wrapper around the CRunDec package for the running of the strong coupling constant and quark masses
https://github.com/DavidMStraub/rundec-python
inspiretools
Python package to auto-generate bibliographies pulling the bibtex data from Inspire