hist_3D_BpBm_SignalOldFF_D0.root :  thisRatio = 0.353378
hist_3D_BpBm_SignalOldFF_Dch.root :  thisRatio = 1.6579
hist_3D_B0B0_SignalOldFF_D0.root :  thisRatio = 0.540241
hist_3D_B0B0_SignalOldFF_Dch.root :  thisRatio = 0.502181