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Würzburg 2018 – scientific programme

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T: Fachverband Teilchenphysik

T 86: Kalorimeter

T 86.4: Talk

Thursday, March 22, 2018, 17:20–17:35, Z6 - SR 2.002

Time Measurements with the CALICE Analog Hadronic Calorimeter — •Christian Graf für die CALICE-D Kollaboration — Max-Planck-Institut für Physik, München, Deutschland

One of the main requirements of particle detectors at future linear e+ e-colliders as ILC or CLIC is a jet energy resolution of  3-4%. To achieve this goal, the detector design heavily relies on the Particle Flow paradigm. Highly granular calorimeters with a fine spacial resolution play a key role in this approach.

The CALICE collaboration is developing concepts for such highly granular calorimeters. One of them, the analog hadronic calorimeter (AHCAL), is a sampling calorimeter using 3x3 cm2 scintillator tiles as active material, read out by silicon photomultipliers (SiPMs) and steel or tungsten plates as absorbers. In order to investigate the performance of the used technologies and to prove the feasibility of constructing this type of calorimeters, a series of test-beam campaigns was carried out with a technological prototype". The technological prototype is constructed with front-end chips integrated in the active layers and the design is scalable to a full detector.

This talk will focus on the time analysis of data taken in test-beam campaigns in 2015 and 2017 at SPS at CERN. Special emphasize will be put on the time structure of hadronic showers with a prototype in a large tungsten stack. Additionally, the influence of a 1.5T magnetic field on the detector performance will be investigated.

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