Würzburg 2018 – scientific programme

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T: Fachverband Teilchenphysik

T 86: Kalorimeter

T 86.3: Talk

Thursday, March 22, 2018, 17:05–17:20, Z6 - SR 2.002

Hadronic energy reconstruction in the CALICE combined calorimeter — •Yasmine Israeli for the CALICE-D collaboration — Max Planck Institute for Physics, Munich, Germany

The CALICE collaboration develops highly granular calorimeters for present and future collider experiments. A system consisting of a Si-W electromagnetic calorimeter, a scintillator steel hadronic calorimeter and a tail catcher was tested with hadronic test-beams at CERN and Fermilab.

This contribution will discuss the calibration and the energy reconstruction for the combined configuration, which has to account for the differing geometry and different readout technology in the sub-systems. The study includes the test beam data and Geant4 simulations with different hadronic physics models. The data were reconstructed with the standard reconstruction and with the software compensation method, which uses the information of the local energy of each detector cell.

The energy resolutions obtained with the combined system are comparable to the ones achieved for showers starting only in the hadronic calorimeter, demonstrating the success of the inter-calibration of the different subsystems. In addition,the software compensation-based algorithm improves the hadronic energy resolution by up to 30% compared to the standard reconstruction.