As a check on the reconstruction code, we use Monte Carlo to look for a systematic difference between generated and reconstructed quantities. This study suggests that there is a discrepancy of about 0.1 between the generated and reconstructed mass differences. There is no evidence for a systematic shift in the mass difference. sc_mass:mc_lim_shift shows the reconstructed mass difference distributions for generated decays. The input and recovered values are summarized in sc_mass:mc_shift.
At this time, an accurate simulation of does not exist, so we are unable to make a similar check on the .