WIP: Add calibration for 2018 PbPb
WIP: Add calibration for 2018 PbPb
- inclusion of new constants for PbPb 2018 (hengne.li@cern.ch, bursche@cern.ch)
- inclusion of constants to indicate periods for which no calibration is available (daniel.johnson@cern.ch)
Edited by Liang Sun