Performance of the Local Reconstruction Algorithms for the CMS Hadron Calorimeter in Run-2 Data

We report the energy reconstruction algorithms used by the CMS hadron calorimeter (HCAL) during the LHC Run-2. The spread of signal pulse of the energy deposited in the HCAL is larger than the bunch crossing time (25 ns), and hence the pulse may overlaps with adjacent pulses due to the high pileup scenario and collision in adjacent bunch. The correct contribution of the signal pulse can be estimated using the known pulse shapes of the energy deposition. The poster describes the performance of the algorithms developed to mitigate the effect of collision in adjacent bunch crossings on the local HCAL energy reconstruction in Run-2 (2016–2018).