SMuK 2023 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 22: Calorimeter / Detector Systems I

T 22.6: Vortrag

Montag, 20. März 2023, 17:45–18:00, WIL/C133

position reconstruction in a protoype cell of the SHiP surround background tagger — •Mahyar Jadidi for the SHiP-SBT collaboration — Albert Ludwigs Universität Freiburg, Freiburg im Breisgau, Germany

The future SHiP experiment at CERN aims for the discovery of long lived heavy neutral particles in a zero background experiment. To reach this challenging goal, its decay volume is surrounded by an active layer of the liquid scintillator (LAB), consisting of cells of about 1 square meter surface area. Each cell is equipped with two wavelength-shifting optical modules (WOMs) to collect the scintillation light. At each WOM, the collected light is detected by 40 silicon photomultipliers (SiPMs) arranged in a circle. With the help of a neural network, the time and the amplitude information from the SiPMs are used to reconstruct the position and possibly the direction of the particles passing the cell. First results on the position resolution measured in the test beam campaign at DESY in Fall 2022 and a comparison to Monte Carlo simulations will be presented.