Bonn 2020 – scientific programme

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T: Fachverband Teilchenphysik

T 80: Calorimeters

T 80.3: Talk

Thursday, April 2, 2020, 17:05–17:20, H-1.003

Time Measurements with the CALICE Analogue Hadronic Calorimeter Prototype — •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 particle flow algorithms.

CALICE is an R&D collaboration focussed 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 scintillating tiles read out by Silicon Photomultipliers. It is a 22000 channel sampling calorimeter with steel absorber. The high spatial granularity and single-cell timing enhances the particle separation and background rejection capability.

This contribution is focussed on the hit time measurement of the AHCAL using data collected in extensive beam test campaigns at CERN in 2018. The calibration procedure and correction of electronic effects will be introduced and the achievable hit time distribution will be reported. It will also touch upon first results of the hit time analysis of hadronic showers in simulation as well as in data.