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T: Fachverband Teilchenphysik

T 70: Kalorimeter II

T 70.4: Vortrag

Mittwoch, 2. März 2016, 17:30–17:45, VMP6 HS E

Timing measurement in the CALICE AHCAL. — •Eldwan Brianne for the CALICE-D collaboration — Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg — Universität Hamburg, Institut für Experimentalphysik, Luruper Chaussee 149, 22761 Hamburg

The CALICE Collaboration is developing highly granular calorimeters for a future e⁺e⁻ linear collider. The development of the calorimeters is driven by the Particle Flow (PFA) concept in order to achieve a jet energy resolution of 3-4 %. The Analog Hadronic Calorimeter (AHCAL) is one of the detector concepts based on 3x3 cm² scintillating tiles read out by Silicon Photomultipliers and processed by an ASIC (SPIROC2B) capable to measure timing.
A second generation engineering prototype of the AHCAL is developed to focus on the full scalabilty of the detector and features, in addition to amplitude measurements, timing measurements at a single cell level. It was tested at the CERN SPS in summer 2015 with two different absorber materials, steel and tungsten, in muon, electron and hadron beams. This talk will focus on the timing capabilities of the AHCAL prototype and the possible influence on PFA reconstruction.