D0 --> K pi decay simulation
Added a macro to simulate D0 --> K pi decays from LHCb kinematics (saved in a .root file).
Fix to the momentum estimation with parabolic chi2 fitting.
Now using the covariance instead of GetErrX for the chi2 fitting.
Added a macro to simulate D0 --> K pi decays from LHCb kinematics (saved in a .root file).
Fix to the momentum estimation with parabolic chi2 fitting.
Now using the covariance instead of GetErrX for the chi2 fitting.