Storing kinematics of t&p pair
We might want to store the full kinematic information of the t&p pair. Right now, only the mass is stored. We could consider storing pt, eta, y, phi, mass for convenience. Entry point: https://gitlab.cern.ch/HiggsDNA-project/HiggsDNA/-/blob/master/higgs_dna/workflows/dystudies.py?ref_type=heads#L434-436