tauRecTools: handle vertex correction in TauCalibrateLC
Hello,
This MR is fixing a small inconsistency in the calo-only tau energy scale calibration. In the offline tau reconstruction, by default, the topocluster momentum is corrected for the tau vertex position. However, this was not propagated to the calo-only energy calibration which currently uses a non-vertex-corrected pt as input (ptDetectorAxis). This was overlooked in the R20->R21 migration when we switched from an energy correction to a pt correction. This is now handled properly. The impact of the vertex correction on the tau pt is expected to be very small (especially, given the rather poor resolution of the calo-only calibration).
Cheers, Bertrand