Based on the KinFitter package by Thomas Goepfert: KinFitter - A Kinematic Fit with Constraints

Wiki: https://github.com/goepfert/KinFitter/wiki/KinFitter---A-Kinematic-Fit-with-Constraints Documentation: http://www.iktp.tu-dresden.de/~goepfert/KinFitter.pdf

Setup:

Clone the repo:

git clone git@github.com:LuSchaller/pyKinFit.git

Then setup your python environment and do

cd pyKinFit
make

Edit the paths in path.sh or manually export the environment variables

in Python:

import pyKinFit
pyKinFit.setBestCombi(inputpt, inputeta, inputphi, inputmass)

You can execute

python3 cfest.py

to confirm everything works