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Dortmund 2021 – scientific programme

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T: Fachverband Teilchenphysik

T 82: Calorimeters II

T 82.2: Talk

Thursday, March 18, 2021, 16:15–16:30, Tg

Test Beam Study of CALICE Scintillator Tiles — •Fabian Hummer, Frank Simon, Ivan Popov, and Lorenz Emberger for the CALICE-D collaboration — Max-Planck-Institut für Physik

One of the main design drivers at future energy-frontier e+e colliders is the precise determination of the energy of particle jets. This is achieved with detector designs optimized for the particle flow paradigm. CALICE is an R&D collaboration focused on the development of highly granular calorimeters optimized to aid this paradigm by providing high spatial resolution. The Analogue Hadronic Calorimeter (AHCAL) is one of the detector concepts based on the SiPM-on-Tile technology, using scintillating tiles read out by Silicon Photomultipliers. A key aspect of the recently completed technological prototype is the capability for single-cell time stamping on the nanosecond level to enhance the particle separation and background rejection capability. To investigate the intrinsic time resolution of this technology, a modular test beam setup has been designed and tested at DESY in October 2020. In this setup four scintillator tiles arranged as a "beam telescope" are read out by precise digitizers, allowing detailed studies of the time structure of the detector response. We have investigated different scintillator materials and tile arrangements. In this contribution we will introduce the setup, outline the calibration procedure and report on the achievable time resolutions.

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