ATLAS Offline Software
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This package provides event data model classes for Calorimeter reconstruction.
CaloCell is the input data class for all calorimeter reconstruction algorithms. CaloCells are stored in a CaloCellContainer. They can be compactified into a CaloCompactCell in a CaloCompactCellContainer.
The principal data classes for composite calorimeter reconstruction objects are CaloTower and CaloCluster . Both classes provide the same basic features in that they both have a four-vector representation and a list of CaloCell s attached. The differences are that CaloTower s are defined on a regular \( \Delta \eta \times \Delta \phi \) grid, while CaloCluster s generally represent signal (energy) blobs any where in the calorimeters, even across sub-detector boundaries.
CaloTower and CaloCluster are stored in the CaloTowerContainer and the CaloClusterContainer , respectively.